ChatGPT answers, unedited

If you’re a freelancer managing several small clients, there’s an important distinction between multi-account management and true white-labeling.

The main options

MailerLite is probably the sweet spot if you don't actually need white-labeling. Its agency setup lets you use one login and switch between separate client accounts, with each client retaining its own subscribers, campaigns, automations and templates. The Power plan starts at $25/month ($22.50 when billed annually) and includes unlimited user seats. MailerLite MailerLite

The catch: MailerLite explicitly does not offer a white-label/reseller version of its app. MailerLite

HighLevel is the more compelling option if white-labeling is genuinely important. Its $97/month Starter plan gives you 3 sub-accounts; the $297/month Unlimited plan gives you unlimited sub-accounts and a branded desktop app/custom domain. It also supports rebilling email costs to clients on higher plans. GoHighLevel HighLevel Support Portal

That means the economics change depending on your client count:

• 2–5 small clients, email only: I'd look at MailerLite first.
• 5–10+ clients: A centralized agency platform like HighLevel becomes more interesting.
• You want clients to see your branding rather than the software company's branding: HighLevel is the much closer match.
• You mainly need inexpensive email sending and don't care about a branded client portal: I'd avoid paying $297/month just for white-label functionality.

One particularly useful MailerLite feature for a freelancer is that you can keep each client's account separate while switching between them from one login, rather than mixing all your clients' lists together. MailerLite

mailerlite.com · gohighlevel.com

If you tell me roughly how many clients you have (e.g. 3, 10, 20) and average subscribers per client, I can calculate the approximate monthly cost of the cheapest setup across 4–5 platforms.

If you're a freelance marketer with several small clients, there are really two different needs: cheap multi-account management and true white-labeling.

My practical take

If you don't absolutely need white-labeling: I'd look at MailerLite first. It specifically supports agencies managing separate client accounts from one login, with each client's subscribers, campaigns, automations and templates kept separate. There are no per-seat fees or white-label upcharges. MailerLite MailerLite

mailerlite.com

If you need the client to see your branding: HighLevel is the much more purpose-built option. Its $97/month Starter plan supports 3 sub-accounts; the $297/month Unlimited plan supports unlimited sub-accounts and includes a branded desktop app/white-label capability. GoHighLevel GoHighLevel

gohighlevel.com

The catch is that HighLevel is considerably more than an email platform—CRM, funnels, booking, SMS, automation, reputation management, etc. So paying $297/month just to send newsletters to a handful of clients may be overkill. Its email infrastructure is usage-priced separately; HighLevel currently lists LC Email at $0.675 per 1,000 emails. HighLevel Support Portal

What I'd choose by client count

• 2–5 small clients: MailerLite + separate client accounts. Cheapest and simplest.
• 5–15 clients, mostly newsletters/automations: I'd investigate Brevo and MailerLite before paying for an agency platform.
• 10+ clients and you want to sell "email marketing software" under your own brand: HighLevel becomes much more interesting.
• You want to charge clients a monthly software + management fee: HighLevel's agency/sub-account model is specifically designed around that. Its Pro plan adds SaaS mode and automated sub-account creation/rebilling. GoHighLevel

One important distinction: MailerLite does not currently offer true white-label/reseller software, despite allowing you to manage multiple client accounts. MailerLite

If you tell me roughly how many clients you manage (e.g. 5, 10, 20) and their typical list sizes, I can calculate the approximate monthly cost of 3–4 options and show which setup gives you the most margin.

If you need the client to see your branding: HighLevel is the much more purpose-built option. Its $97/month Starter plan supports 3 sub-accounts; the $297/month Unlimited plan supports unlimited sub-accounts and includes a branded desktop app/white-label capability.

Yes. For a freelance marketer with several small clients, I’d separate “multi-account management” from true white-label/reseller software—because the cheapest option is often not the one with full white-labeling.

My shortlist

1. MailerLite — my pick for most freelancers

This is probably the best value if your clients can each have their own MailerLite account.

MailerLite explicitly supports agencies: you can manage multiple client accounts from one login, switching between them in two clicks. Each client retains separate subscribers, campaigns, automations and billing. MailerLite MailerLite

The catch: it isn't actually white-label. MailerLite says it doesn't offer a reseller/white-label version. MailerLite

The upside is price. Its current Power plan starts at $25/month for up to 500 subscribers, with unlimited users and unlimited monthly emails; there's also a free plan for small lists. MailerLite MailerLite

Best setup: Have each client own/pay for their MailerLite account, while you get agency access. You can charge them your management fee separately without eating their email-software costs.

mailerlite.com

2. HighLevel — best if you really want white-labeling

If by white-label you mean:

“I want my client to log into my agency's branded platform, not see MailerLite/HighLevel.”

Then HighLevel is much more appropriate.

Its current pricing is:

• $97/mo — 3 sub-accounts
• $297/mo — unlimited sub-accounts
• $497/mo — unlimited sub-accounts + SaaS Mode, which lets you sell the platform as your own software and automate account creation/rebilling. GoHighLevel

So, for example, once you have 10–20 clients, the $297 plan can become attractive because you aren't paying for a separate platform subscription for every client.

The downside is that $297/month is a lot if you're only managing 3–5 small clients. And HighLevel is substantially more than an email platform—it includes CRM, funnels, SMS, automation, calendars, etc. GoHighLevel

gohighlevel.com

3. Brevo — worth considering for inexpensive client email

Brevo is attractive if you're primarily doing email campaigns and automation rather than selling clients a whole marketing platform.

However, its true centralized sub-account functionality is currently an Enterprise feature, so I wouldn't choose it specifically for inexpensive multi-client account management. Brevo Help Brevo Help

It does have inexpensive plans and relatively flexible user/permission management, though. Brevo Help

brevo.com

What I'd do in your situation

If you're a solo freelance marketer with ~3–15 small businesses, I'd probably go:

MailerLite → client owns the account → you manage it → client pays the software bill → you charge a monthly management fee.

That's much cheaper and cleaner than paying $297–497/month for a white-label platform.

I'd move to HighLevel when you have enough clients that you want to turn email/CRM/automation into a standardized agency product and sell it under your own brand.

The key distinction is:

• Want cheap + easy: MailerLite
• Want cheap + separate client accounts: MailerLite
• Want actual agency-branded software: HighLevel
• Want to resell software and recurring subscriptions: HighLevel SaaS Mode
• Want primarily inexpensive email sending: Brevo

If you tell me roughly how many clients you have (e.g. 5, 10, 20) and average subscribers per client, I can calculate the cheapest setup and break-even point between these options.

3. Brevo — worth considering for inexpensive client email

Brevo is attractive if you're primarily doing email campaigns and automation rather than selling clients a whole marketing platform.

However, its true centralized sub-account functionality is currently an Enterprise feature, so I wouldn't choose it specifically for inexpensive multi-client account management. Brevo Help Brevo Help

It does have inexpensive plans and relatively flexible user/permission management, though. Brevo Help

brevo.com

What I'd do in your situation

If you're a solo freelance marketer with ~3–15 small businesses, I'd probably go:

MailerLite → client owns the account → you manage it → client pays the software bill → you charge a monthly management fee.

That's much cheaper and cleaner than paying $297–497/month for a white-label platform.

If you’re a freelancer managing several small-business clients, I’d narrow it to three:

1. brevo.com — my budget pick

For small clients with relatively modest sending volumes, Brevo is probably the first one I'd investigate. Its agency program gives you centralized multi-account management, so you can switch between client accounts rather than maintaining a pile of separate logins. It also offers recurring revenue share of 10–25%, depending on partner tier. Brevo

The big advantage is its email-volume pricing model, which can be much cheaper than platforms that charge heavily based on contacts. An independent 2026 comparison similarly rated Brevo as the value choice for boutique agencies. Hack'celeration

Best if: your clients mostly need newsletters, basic automations, forms and segmentation.

2. mailerlite.com — easiest freelancer setup

MailerLite is particularly attractive if you don't actually need your clients to see your branding.

You get one login that can switch between separate client accounts, with each account keeping its own subscribers, campaigns, automations and templates. Clients can also have their own permissions. MailerLite

The catch: MailerLite explicitly does not offer native white-labeling. You can build your own branded dashboard using its API, but that's a development project rather than a turnkey agency feature. MailerLite

Best if: you're charging clients for management rather than trying to resell the software itself.

3. activecampaign.com — best true white-label option

If by "white-label" you mean:

Client sees my company, pays me, and email software is effectively part of my service.

ActiveCampaign is much closer to what you're describing.

Its agency/reseller program lets you resell accounts, customize the branding, bill clients yourself, and manage accounts through the agency infrastructure. ActiveCampaign Help Center ActiveCampaign

The interesting part for a freelancer is the volume discount:

• 2–24 accounts: 25% discount
• 25–49: 35%
• 50–99: 45%
• 100+: 55% ActiveCampaign Help Center

So it becomes considerably more compelling once you're managing a meaningful number of clients.

The downside is that ActiveCampaign is substantially more feature-heavy—and potentially more expensive—than you need if you're just sending occasional newsletters.

What I'd do in your position

1–5 small clients: MailerLite or Brevo. Keep each client in their own account and charge separately for your management service.

5–20 clients: Brevo starts looking particularly attractive because of centralized management and its sending-based economics.

You specifically want to sell "white-labeled email marketing" as a product: ActiveCampaign is the strongest fit because it actually has a reseller/white-label structure rather than merely letting you manage client accounts. ActiveCampaign Help Center ActiveCampaign

One important distinction: don't confuse "multiple accounts under one login" with true white-labeling. MailerLite gives you the former; ActiveCampaign's agency program is designed for the latter.

If you tell me roughly how many clients you have (e.g. 5, 10, 20), typical subscriber count per client, and whether you're sending weekly or monthly, I can work out which option would likely cost you the least per month.

Yes. For a freelance marketer managing several small businesses, I’d separate the options into “cheap multi-account management” and “true white-label/reseller.”

My shortlist

1. Brevo — probably the best budget starting point

Brevo has an agency program with centralized multi-account management, so you can switch between client accounts from one place. It also offers revenue sharing of 10–25% depending on partner tier. Brevo

The big advantage for a freelancer is that you don't necessarily have to absorb every client's software bill yourself—you can have clients maintain their own Brevo accounts while you manage them.

Best if: you have 3–10 small clients and don't actually need the software to appear under your own brand.

brevo.com

2. MailerLite — excellent inexpensive freelancer option

MailerLite specifically supports agencies managing multiple clients. You get one login with separate client accounts, and can switch between them without logging in and out. MailerLite

However, there's an important catch: MailerLite does not offer native white-labeling. It says agencies can build their own white-label dashboard through its API, but that's obviously a much bigger project. MailerLite

Best if: you care more about inexpensive management than having your own branded software.

mailerlite.com

3. ActiveCampaign — best reseller economics

This is particularly interesting for your situation.

ActiveCampaign has an actual Agency/Reseller program. You can purchase multiple client accounts under the agency program and resell them. The discount starts at 25% once you have 2–24 active resold accounts, then rises to 35% at 25–49, 45% at 50–99, and 55% at 100+. ActiveCampaign Help Center ActiveCampaign

You bill the client yourself, so you can package:

Email software + setup + monthly management + campaigns + automation

into one monthly fee.

Best if: you're building email management into a recurring service rather than simply administering clients' accounts.

help.activecampaign.com

4. HighLevel — best true white-label option

If white-labeling is non-negotiable, HighLevel is the one I'd investigate first.

Its current pricing is:

• $97/mo — 3 subaccounts
• $297/mo — unlimited subaccounts + branded/white-labeled desktop app
• $497/mo — adds SaaS mode and the ability to rebill email/phone usage with markup GoHighLevel GoHighLevel

The $297 plan is interesting if you're managing, say, 10–30 clients, because your software cost isn't increasing with every additional client. HighLevel explicitly supports unlimited subaccounts and custom branding. GoHighLevel

Email itself is usage-based; HighLevel currently lists $0.675 per 1,000 emails through its built-in email system. HighLevel Support Portal

Best if: you want clients to log into a platform that looks like your own marketing software, and you're willing to build a more substantial agency offering around it.

gohighlevel.com

What I'd choose in your shoes

If you're a solo freelancer with 3–10 small clients, I'd start with Brevo or MailerLite and have each client own their account. Your service fee is where you make money, rather than trying to arbitrage the email software.

If you're aiming for 10+ clients and want to sell “email marketing as a service” under your own brand, I'd look at ActiveCampaign's reseller program.

If your goal is specifically:

“Client sees my brand, logs into my portal, and I manage all their accounts from one agency dashboard.”

then HighLevel is the clear fit, although $297/month is a substantially bigger commitment.

One other option worth considering is using separate client accounts under one agency login rather than technically white-labeling the software. For small clients, that often gives you 80–90% of the operational benefit without paying for a full white-label platform.

This is particularly interesting for your situation.

ActiveCampaign has an actual Agency/Reseller program. You can purchase multiple client accounts under the agency program and resell them. The discount starts at 25% once you have 2–24 active resold accounts, then rises to 35% at 25–49, 45% at 50–99, and 55% at 100+.

You bill the client yourself, so you can package:

Email software + setup + monthly management + campaigns + automation

into one monthly fee.

Best if: you're building email management into a recurring service rather than simply administering clients' accounts.

If you’re a freelancer managing several small clients, I’d prioritize multi-client management + predictable pricing over a traditional per-contact ESP.

My shortlist

🥇 Best fit: Aledamail

Aledamail is particularly interesting for your use case because its agency plans are explicitly built around multiple client workspaces and white-labeling. The Starter agency plan is currently $59/month, with 5,000 subscribers, 5,000 emails/month, multiple workspaces and white-label branding. Growth is $149/month with 25,000 subscribers and 100,000 emails/month. Aledamail

The important catch: the cheaper plans are BYOS ("bring your own sending"), so you'd need to provide the sending infrastructure. If you don't want to deal with that, the Pro plan starts at $349/month with managed sending. Aledamail

🥈 If you don't actually need white-label: MailerLite

I'd seriously consider MailerLite if your clients don't need to log into a platform branded as yours. One login can switch between separate client accounts, with each client's subscribers, campaigns, automations and templates kept separate. However, MailerLite explicitly says it doesn't offer a white-label/reseller version. MailerLite

This could be dramatically cheaper than paying for true white-labeling when you're simply the person doing the marketing for clients.

🥉 If you want to sell a whole marketing system: HighLevel

HighLevel makes sense if email is only part of what you're selling—e.g. email + CRM + forms + funnels + appointment booking + automation.

Its current pricing is $97/month for 3 sub-accounts, or $297/month for unlimited sub-accounts. The $297 plan includes a branded desktop app/custom domain, so clients can interact with the system under your agency branding. GoHighLevel GoHighLevel

For a freelancer with, say, 4–10 tiny clients who only need newsletters, though, $297/month is probably overkill.

What I'd choose

• 3–5 clients, want cheapest true white-label: Aledamail
• 5–20+ clients, willing to handle sending infrastructure: Elastic Email
• Clients don't need your branding: MailerLite
• You want to turn email into a broader recurring marketing service: HighLevel
• You want a pure reseller/white-label business: also look at IGSendMail, whose reseller plans currently start at $199/month with unlimited client accounts. IGSendMail

One particularly important distinction: "manage multiple clients" and "white-label" aren't the same thing. MailerLite, for example, is excellent for managing separate client accounts but doesn't give you a white-labeled client-facing platform. MailerLite

If you tell me roughly how many clients you have (e.g. 5, 10, 20), average subscribers per client, and emails/month, I can calculate the cheapest setup and estimated monthly cost for you.

The important catch: the cheaper plans are BYOS ("bring your own sending"), so you'd need to provide the sending infrastructure. If you don't want to deal with that, the Pro plan starts at $349/month with managed sending. Aledamail

🥈 If you don't actually need white-label: MailerLite

I'd seriously consider MailerLite if your clients don't need to log into a platform branded as yours. One login can switch between separate client accounts, with each client's subscribers, campaigns, automations and templates kept separate. However, MailerLite explicitly says it doesn't offer a white-label/reseller version. MailerLite

This could be dramatically cheaper than paying for true white-labeling when you're simply the person doing the marketing for clients.

🥉 If you want to sell a whole marketing system: HighLevel

HighLevel makes sense if email is only part of what you're selling—e.g. email + CRM + forms + funnels + appointment booking + automation.

Its current pricing is $97/month for 3 sub-accounts, or $297/month for unlimited sub-accounts. The $297 plan includes a branded desktop app/custom domain, so clients can interact with the system under your agency branding.

For a freelancer with, say, 4–10 tiny clients who only need newsletters, though, $297/month is probably overkill.

What I'd choose

Yes. For a freelancer managing several small businesses, I’d separate “multi-client management” from true white-labeling—because the cheapest option is usually not the one that lets clients log in under your brand.

My shortlist

🥇 Best value if you don't need white-label: MailerLite

mailerlite.com is probably where I'd start.

It specifically supports agencies managing multiple separate client accounts from one login, with each client's subscribers, campaigns, automations and templates isolated. Its Power plan starts around $25/month, and MailerLite says agencies can switch between client accounts in two clicks. MailerLite MailerLite

The catch: it is not white-label. Clients will know they're using MailerLite unless you build your own front end through its API. MailerLite

For a freelancer who simply manages email for clients, that's often completely fine.

🥈 Best if you want your own agency-branded platform: HighLevel

gohighlevel.com is much more agency-oriented.

The $97/month Starter plan gives you 3 sub-accounts; the $297/month Unlimited plan gives you unlimited sub-accounts, and white-labeling is available so clients can see your branding rather than HighLevel's. GoHighLevel HighLevel Support Portal

It also lets you rebill email costs to clients. Email usage is currently listed at $0.675 per 1,000 emails, with markup-based rebilling available on the $497 Pro plan. HighLevel Support Portal

The downside is that $97–$297/month is a lot if you're only selling newsletters. HighLevel makes more sense if you're also providing CRM, funnels, SMS, automations, lead management, etc.

🥉 Cheapest true white-label option: Elastic Email

Elastic Email is worth investigating if white-label is non-negotiable but you don't want to pay HighLevel money. Current industry comparisons list its reseller/client-management tier around $49/month, with white-labeling and unlimited client sub-accounts. Mailfence Blog

I'd put it ahead of HighLevel if your business is specifically “I manage email marketing for 10–30 small companies” rather than “I'm building an all-in-one marketing agency.”

Another interesting option: Spreeflo

spreeflo.com uses an unusual model: you pay based on total contacts across clients rather than per-client fees. Its published examples are $30/mo for 5 clients/5,000 contacts, $53/mo for 10 clients/15,000 contacts, and $160/mo for 20 clients/50,000 contacts. It doesn't currently offer white-labeling, though. Spreeflo

What I'd choose in your situation

• 1–5 clients: MailerLite. Keep the software cheap and charge clients for your management.
• 5–15 clients: MailerLite or Elastic Email, depending on whether you need white-labeling.
• 15+ clients: Elastic Email or HighLevel Unlimited.
• You want to sell “your own email marketing platform” under your brand: HighLevel or a dedicated white-label reseller platform.
• You're selling broader marketing services too: HighLevel becomes much more attractive.

One important distinction: white-labeling the software interface isn't the same as sending emails from the client's own domain. Even with a white-labeled platform, each client's sending domain should normally be authenticated with SPF/DKIM/DMARC.

If you tell me roughly how many clients you have now (e.g. 5, 10, 20), average list size, and whether clients need their own logins, I can calculate the cheapest setup and what you could charge each client to make a healthy margin.

It specifically supports agencies managing multiple separate client accounts from one login, with each client's subscribers, campaigns, automations and templates isolated. Its Power plan starts around $25/month, and MailerLite says agencies can switch between client accounts in two clicks. MailerLite MailerLite

The catch: it is not white-label. Clients will know they're using MailerLite unless you build your own front end through its API. MailerLite

For a freelancer who simply manages email for clients, that's often completely fine.

🥈 Best if you want your own agency-branded platform: HighLevel

gohighlevel.com is much more agency-oriented.

The $97/month Starter plan gives you 3 sub-accounts; the $297/month Unlimited plan gives you unlimited sub-accounts, and white-labeling is available so clients can see your branding rather than HighLevel's. GoHighLevel HighLevel Support Portal

It also lets you rebill email costs to clients. Email usage is currently listed at $0.675 per 1,000 emails, with markup-based rebilling available on the $497 Pro plan. HighLevel Support Portal

The downside is that $97–$297/month is a lot if you're only selling newsletters. HighLevel makes more sense if you're also providing CRM, funnels, SMS, automations, lead management, etc.

🥉 Cheapest true white-label option: Elastic Email

Elastic Email is worth investigating if white-label is non-negotiable but you don't want to pay HighLevel money. Current industry comparisons list its reseller/client-management tier around $49/month, with white-labeling and unlimited client sub-accounts. blog.mailfence.com

I'd put it ahead of HighLevel if your business is specifically “I manage email marketing for 10–30 small companies” rather than “I'm building an all-in-one marketing agency.”

Another interesting option: Spreeflo

spreeflo.com uses an unusual model: you pay based on total contacts across clients rather than per-client fees. Its published examples are $30/mo for 5 clients/5,000 contacts, $53/mo for 10 clients/15,000 contacts, and $160/mo for 20 clients/50,000 contacts. It doesn't currently offer white-labeling, though.

What I'd choose in your situation

If you’re a freelancer managing several small businesses, I’d separate “multi-client management” from true white-labeling. They’re not the same, and the cheapest option depends on whether clients need to see your brand.

My shortlist

🥇 Best value: MailerLite

For a solo freelance marketer, MailerLite is probably what I'd start with.

It specifically supports agencies managing multiple client accounts: you can use one login and switch between separate client accounts, with each client's subscribers, campaigns, automations and billing kept separate. Its Power plan also includes unlimited user seats. MailerLite MailerLite

The important catch: MailerLite isn't white-label. Clients will know they're using MailerLite. MailerLite

That's actually fine if your service is something like:

"I manage your email marketing for you."

You don't necessarily need the client to interact with the software.

🥈 Best if you want centralized agency management: Brevo

brevo.com has an agency program specifically for consultants/freelancers. It gives you centralized multi-account management, so you can switch between clients from your own account. Their partner program also offers recurring revenue share—10%, 20%, or 25% depending on your partner tier. Brevo

I'd particularly consider Brevo if your clients have small subscriber lists but send a lot of campaigns, since its pricing is based heavily on email volume rather than simply number of contacts.

🥇 Best true white-label: HighLevel

If by "white-label" you mean:

"I want my client to log into something that looks like my agency's software."

Then gohighlevel.com is the much stronger choice.

Its $297/month Unlimited plan provides unlimited sub-accounts, which are essentially separate client environments, plus branded/custom-domain functionality. GoHighLevel GoHighLevel

The downside is obvious: $297/month is a lot if you're only managing 3–5 small clients. You're paying for a full agency CRM/marketing platform, not merely email marketing.

What I'd do in your position

If you're currently managing ~3–10 small clients, I'd use:

MailerLite → clients own/pay for their individual accounts → you manage them all from one login.

That's probably the lowest-risk setup because you're not carrying everyone's software bill, and clients retain ownership of their lists/data. MailerLite explicitly supports this agency arrangement. MailerLite

Then, once you're managing enough clients to justify $297+/month, consider HighLevel if you want to turn email management into a more comprehensive white-label agency service.

One important distinction: if your goal is specifically to resell email software under your own brand and charge clients a monthly software fee, I'd choose differently than if you're simply providing email marketing as a service. In that case, I can give you a 5–7 platform comparison focused specifically on white-label/reseller pricing and profit margins.

Yes. If you’re a freelancer managing several small-business email accounts, I’d separate the options into two categories: cheap multi-client management and true white-label/reseller platforms.

My shortlist

🥇 Best cheap option: MailerLite

MailerLite is probably where I'd start if your clients don't need their own branded software portal.

One login can switch between separate client accounts, with each client having its own subscribers, campaigns, automations and templates. The important catch: MailerLite explicitly doesn't offer white-label/reseller functionality. MailerLite

So you could structure it as:

• Client A → their own MailerLite account
• Client B → their own MailerLite account
• Client C → their own MailerLite account
• You manage all of them
• Clients pay you a monthly management fee
• They can own/pay for their underlying MailerLite account

That's a very inexpensive setup for a freelancer.

🥈 Best if you actually want white-label: Aledamail

Aledamail is much closer to what you're describing.

It offers isolated client workspaces, one-login management, your branding, client usage reporting and white-labeling. Its published plans currently start at $59/month, including multiple workspaces and white-label branding. Aledamail

For example, if you had 8 clients paying you $150/month each for email management, a $59 platform cost is pretty easy to absorb.

The downside is that it's a newer/smaller platform than the established ESPs, so I'd test deliverability and integrations before moving important clients onto it.

🥉 Best established agency platform: HighLevel

HighLevel is excellent if you're planning to turn email into a broader marketing-as-a-service offering.

The current pricing is:

• $97/mo — 3 sub-accounts
• $297/mo — unlimited sub-accounts + white-label desktop
• $497/mo — adds SaaS mode and rebilling/markup capabilities GoHighLevel HighLevel Support Portal

But for email alone, I'd consider $297/month excessive for a small freelance operation. It becomes attractive when you're also selling CRM, funnels, SMS, appointment booking, reviews, automation, etc.

An interesting ultra-budget alternative: Spreeflo

Spreeflo is specifically positioning itself around agencies managing multiple clients. Its published pricing says you pay based on total contacts rather than number of clients, with examples of 5,000 contacts across clients at $30/month and 15,000 at $53/month. Spreeflo

However, full white-labeling isn't currently available; the company says it's on its roadmap. Spreeflo

What I'd choose in your situation

If you're talking about 5–15 small clients, I'd rank them:

1. MailerLite — best if clients don't need a white-label portal.
2. Aledamail — best if you specifically want your own branded email platform.
3. Spreeflo — worth investigating if keeping costs extremely low is the priority.
4. HighLevel — only if you're building a broader marketing agency/SaaS offering.
5. Campaign Monitor — good multi-brand agency functionality, but I'd compare its actual per-contact costs against the above before committing. A recent agency comparison puts it among the stronger multi-client options. Hack'celeration

One important distinction: if by "white-label" you mean the client sees your logo/domain and thinks the email platform itself is yours, don't assume an ESP's "agency" or "multi-account" feature qualifies. MailerLite, for example, specifically says it is not white-label. MailerLite

If you tell me roughly how many clients you have, average contacts per client, and whether clients need their own logins, I can calculate the cheapest setup (e.g. 5 clients vs. 10 vs. 20) and include the approximate monthly cost for each platform.

HighLevel is excellent if you're planning to turn email into a broader marketing-as-a-service offering.

The current pricing is:

If you're a freelancer managing several small clients, I'd separate the choices into cheap multi-account management vs. true white-labeling.

🥇 My pick: MailerLite

For your situation, MailerLite is probably the sweet spot. Its agency setup lets you manage separate client accounts from one login, switch between them in two clicks, and keep each client's subscribers, campaigns, templates, and billing separate. MailerLite

The important catch: MailerLite isn't actually white-label. It explicitly says it doesn't offer a white-label/reseller version. You can build your own branded dashboard using its API, but that's a much more technical solution. MailerLite

Its paid plans currently start around $12/month, and the Power plan is around $25/month with unlimited user seats and unlimited monthly sending. MailerLite

Why I'd use it: Have each client own their MailerLite account, you manage all of them from your agency login, and charge the client separately for your management service. That avoids paying a huge agency-platform fee yourself.

🥈 Brevo — great if you want inexpensive client accounts

brevo.com has a particularly good agency model. Its Agency Partner program provides centralized multi-account management, so you can switch between client accounts from your dashboard. It also offers 10–25% recurring revenue share depending on partner tier. Brevo

Standard currently starts at $18/month for 5,000 emails/month, with pricing primarily scaling by email volume rather than just subscriber count. Brevo Help

I'd consider Brevo if your clients have small lists but don't send very frequently, or if you want SMS/transactional email alongside marketing email.

🥉 HighLevel — if you actually want to white-label

gohighlevel.com is the one I'd choose if your business model is:

"I sell my clients an email/CRM platform under my agency brand."

Its $97/month Starter plan gives you 3 sub-accounts; $297/month Unlimited gives you unlimited sub-accounts; and $497/month Agency Pro adds SaaS Mode. HighLevel also explicitly supports white-labeling the desktop web app so clients see your branding rather than HighLevel's. GoHighLevel GoHighLevel

The downside is obvious: $97/month is a lot when you only have 2–3 tiny clients. It becomes much more attractive once you have 5–10+ clients and can bundle the software into your monthly retainer.

What I'd do at different client counts

• 1–5 small clients: MailerLite
• 5–15 clients, inexpensive service: Brevo or MailerLite
• 10+ clients where you want one branded platform: HighLevel
• You want clients to own their accounts/data: MailerLite or Brevo
• You want to resell the software itself under your brand: HighLevel

One important distinction: "manage multiple accounts" and "white-label" aren't the same thing. For a freelance marketer, I'd generally avoid true white-labeling until you have enough clients to justify the $97–$300+/month platform cost. Letting each client own their account while you manage it is considerably cheaper and cleaner.

If you tell me roughly how many clients you have, average subscribers per client, and whether you charge clients for the software separately, I can work out the cheapest setup and your approximate monthly margin.

Its paid plans currently start around $12/month, and the Power plan is around $25/month with unlimited user seats and unlimited monthly sending. MailerLite

Why I'd use it: Have each client own their MailerLite account, you manage all of them from your agency login, and charge the client separately for your management service. That avoids paying a huge agency-platform fee yourself.

🥈 Brevo — great if you want inexpensive client accounts

brevo.com has a particularly good agency model. Its Agency Partner program provides centralized multi-account management, so you can switch between client accounts from your dashboard. It also offers 10–25% recurring revenue share depending on partner tier. Brevo

Standard currently starts at $18/month for 5,000 emails/month, with pricing primarily scaling by email volume rather than just subscriber count. Brevo Help

I'd consider Brevo if your clients have small lists but don't send very frequently, or if you want SMS/transactional email alongside marketing email.

🥉 HighLevel — if you actually want to white-label

gohighlevel.com is the one I'd choose if your business model is:

"I sell my clients an email/CRM platform under my agency brand."

Its $97/month Starter plan gives you 3 sub-accounts; $297/month Unlimited gives you unlimited sub-accounts; and $497/month Agency Pro adds SaaS Mode. HighLevel also explicitly supports white-labeling the desktop web app so clients see your branding rather than HighLevel's.

Yes. If you're a freelance marketer managing several small businesses, I’d separate the options into “cheap multi-account management” and “true white-label/reseller.” They’re not the same thing.

My shortlist

🥇 Best cheap option: MailerLite

mailerlite.com is probably where I'd start if you're managing 3–10 small clients and don't actually need clients to think the software is yours.

MailerLite specifically supports agencies: you can use one login to switch between separate client accounts, with each client's subscribers, campaigns, automations and billing kept separate. MailerLite MailerLite

The catch: it is not white-label. MailerLite explicitly says it doesn't offer a white-label/reseller version. MailerLite

The nice part is that each client can own/pay for their own account, while you manage it. That means you don't have to absorb everyone's email costs into your agency software bill.

I'd choose this if: you're selling email marketing services, rather than selling your own email platform.

🥈 Best true white-label: HighLevel

gohighlevel.com is the much more serious agency option.

Its current pricing is:

• $97/mo — 3 sub-accounts
• $297/mo — unlimited sub-accounts + branded desktop app
• $497/mo — SaaS mode, automated account creation and more agency/reseller functionality GoHighLevel

The $297 plan is where it becomes compelling for a growing freelancer/agency: you can have unlimited client sub-accounts, use your own domain/branding, and potentially rebill email/phone costs to clients. GoHighLevel

But it's arguably overkill if all you need is newsletters and basic automations. You're paying for a whole CRM/marketing automation ecosystem.

🥉 Interesting low-cost white-label option: Aledamail

aledamail.com is worth investigating if white-label is mandatory but HighLevel is too expensive/too bloated.

Its current agency pricing starts at:

• $59/mo — 5,000 subscribers, multi-workspace, white-label
• $149/mo — 25,000 subscribers, 100,000 emails/month
• $349/mo — 100,000 subscribers, 1M emails/month

The first two agency tiers use BYOS ("bring your own sending"), while the $349 tier includes managed sending infrastructure. Aledamail

That's potentially a very interesting fit for a freelancer who wants separate client workspaces + their own branding without jumping straight to $297/month.

What I'd do in your position

If your clients are small businesses with, say, 500–5,000 subscribers each, I'd probably use:

1–5 clients → MailerLite
Let each client have their own account, and you manage them through your agency login. Very inexpensive and clean.

5–15+ clients → Aledamail or HighLevel
If white-labeling is important, Aledamail is particularly interesting at $59/mo. If you also want CRM, funnels, SMS, pipelines, booking, automation, etc., go HighLevel.

You want to charge clients a monthly "email marketing platform" fee → HighLevel
That's where the economics change. You can package the software into your service and potentially rebill usage. HighLevel's $297 plan gives you unlimited sub-accounts. GoHighLevel

One important distinction: if by "white-label" you mean “my clients should never see the underlying software's name/logo and should log into something that looks like my own product,” I'd narrow the search considerably. MailerLite doesn't qualify.

If you tell me roughly how many clients you have now (e.g. 5, 10, 20) and average subscribers per client, I can calculate the cheapest setup and compare the monthly economics of MailerLite vs. HighLevel vs. Aledamail.

Yes. For a freelance marketer managing multiple small-business clients, I’d separate the options into “cheap multi-account management” and “true white-label/reseller.”

My picks

1. Brevo — easiest low-cost setup

Brevo is probably where I'd start. Its Agency Partner program gives you centralized multi-account management, so you can switch among clients without maintaining a pile of separate logins. It also offers recurring revenue share: 10%, 20%, or 25% depending on partner tier. Brevo

The nice part for a freelancer is that each client can have their own Brevo account and billing, rather than you having to absorb everyone's email costs.

brevo.com

2. MailerLite — probably the simplest for small clients

MailerLite explicitly supports agencies managing multiple client accounts from one login. Each client remains isolated, with separate subscribers, campaigns, automations, and templates. MailerLite

It doesn't offer native white-labeling, though, so clients will still know they're using MailerLite. You can build your own branded reporting/dashboard around its API if you really need that later. MailerLite

mailerlite.com

3. AcelleMail — interesting if “white-label” is the priority

This is the unusual option I'd investigate if you're comfortable with a more technical/self-hosted setup. Acelle's agency product is genuinely multi-tenant and white-label: clients can log into a domain such as email.youragency.com, with your branding, while each client has isolated accounts and sending domains. Its current extended license is advertised at $199 one-time, with your own SMTP infrastructure handling sending costs. AcelleMail

That can become extremely inexpensive once you have a decent number of clients, but you're taking on hosting, deliverability, updates, and technical administration.

acellesend.com

4. HighLevel — powerful, but probably overkill initially

HighLevel is much more of an agency operating system than an email tool. Its $97/month Starter plan supports 3 sub-accounts; the $297/month Unlimited plan supports unlimited sub-accounts, and Agency Pro at $497/month adds SaaS/white-label capabilities. GoHighLevel HighLevel Support Portal

So if you're eventually selling email + CRM + funnels + SMS + automation to clients, it's compelling. If you're simply sending newsletters for 5–10 small businesses, I'd avoid paying $297/month just for multi-account email.

gohighlevel.com

What I'd do in your shoes

If you're managing 5–15 small clients, I'd start with Brevo or MailerLite and have each client own their account/billing. You charge them your management fee, while you get centralized access.

If you're trying to build an actual white-labeled email service under your own agency name, I'd investigate AcelleMail.

If your longer-term plan is to sell clients a whole marketing platform, HighLevel becomes much more interesting.

The key distinction: don't confuse multi-account management with white-labeling. MailerLite and Brevo are excellent for the former; AcelleMail and HighLevel are much closer to the latter.

If you tell me roughly how many clients you have (e.g. 5, 10, 25), their typical subscriber counts, and whether you need clients to log into the platform themselves, I can calculate the cheapest setup and your approximate monthly margin.

Yes. For a freelance marketer with several small-business clients, I’d separate “cheap multi-client management” from “true white-labeling.” They lead to different choices.

My shortlist

🥇 Best value: MailerLite

mailerlite.com is probably what I'd choose if you're managing campaigns for clients but don't need the clients to think the software is yours.

Its agency setup lets you manage separate client accounts from one login, switching between accounts without repeatedly logging in. Each client retains their own subscribers, campaigns, automations, and templates. MailerLite

The catch: MailerLite explicitly does not offer white-labeling. You can remove the MailerLite logo on paid plans, but that's different from turning the entire platform into your own branded client portal. MailerLite

Current pricing starts around $12/month for Comfort and $25/month for Power at the small-list level; Power gives you unlimited users and unlimited monthly emails. MailerLite MailerLite

For a freelancer: I'd have each client own/pay for their MailerLite account, then have them grant you access. That keeps your overhead essentially $0 while you still get centralized client management.

🥈 Best agency alternative: Brevo

brevo.com is particularly interesting if your clients have small lists but send relatively frequently, because its pricing is more send-oriented.

Brevo has an actual Agency Partner program with centralized multi-account management. You can switch between client accounts from your dashboard, and the partner program offers recurring revenue share—10%, 20%, or 25% depending on partner tier. Brevo

I'd lean toward Brevo over MailerLite if you're doing a lot of email + transactional email/SMS for clients.

🥇 Best true white-label: HighLevel

gohighlevel.com is the serious option if your goal is:

“I want clients to see my agency's software, not MailerLite/Brevo.”

Its agency structure uses sub-accounts, so clients can be isolated while you manage everything centrally. The $97/month Starter plan gives you 3 sub-accounts; the $297/month Unlimited plan gives you unlimited sub-accounts. GoHighLevel GoHighLevel

HighLevel also supports white-labeled desktop software, and its higher-tier setup can let you resell the software under your own branding. Its current SaaS/agency features even support multiple independent brand identities. GoHighLevel HighLevel Support Portal

The downside is obvious: $297/month is a lot if you're only managing 3–5 tiny clients.

But if you have, say, 15–30 clients paying you $50–$150/month each for email/CRM/automation, HighLevel starts making much more economic sense because you're effectively operating your own marketing platform.

What I'd do in your shoes

1–5 clients:
→ MailerLite. Have clients pay for their own accounts; you manage them.

5–15 clients:
→ Brevo or MailerLite, depending on whether you care more about sending volume/transactional messaging or simplicity.

15+ clients and you want recurring software revenue:
→ HighLevel Unlimited ($297/mo). Charge clients a monthly “email marketing platform + management” fee and make the platform part of your margin.

You specifically need your own logo/domain/client-facing software:
→ HighLevel, rather than trying to hack white-labeling onto MailerLite.

One particularly attractive model for a freelancer is client-owned MailerLite accounts + you as the agency manager. You avoid paying $297/month just to get multi-account functionality, while clients maintain ownership of their lists and billing. MailerLite explicitly supports this agency workflow. MailerLite

If you tell me roughly how many clients you have, average subscribers per client, and what you charge each client/month, I can calculate the cheapest setup and your software cost per client across MailerLite vs Brevo vs HighLevel.

Yes. For a freelance marketer with several small clients, I’d separate “multi-client management” from true white-labeling—because the cheapest tools often support the former but not the latter.

My shortlist

*You'd also need hosting and an email-sending provider.

🥇 Best value: MailerLite

mailerlite.com is probably where I'd start if you don't absolutely need white-labeling.

It specifically supports agencies managing multiple client accounts from one login, with separate subscribers, campaigns, automations, and templates for each client. Its Power plan starts at $25/month and includes unlimited user seats. MailerLite MailerLite

The catch: MailerLite explicitly does not offer a white-label/reseller version. MailerLite

So you could manage 5–10 small clients efficiently, but clients will know they're using MailerLite.

🥈 Best inexpensive true white-label: Aledamail

aledamail.com is particularly interesting for your situation.

Its agency plans currently start at $59/month and include:

• 5,000 subscribers
• Multi-workspace/client accounts
• White-label branding
• 2 users
• One flat agency fee
• Your own sending server (BYOS)

Its $149/month Growth tier increases that to 25,000 subscribers and 100,000 emails/month. Aledamail

If you're specifically looking for “my agency brand + multiple little clients + one inexpensive bill,” this is probably the first platform I'd investigate.

🥉 HighLevel — powerful, but probably overkill initially

gohighlevel.com is the better choice if email is only one component of the service you're selling.

Its Starter plan is $97/month for up to 3 sub-accounts. The $297/month Unlimited plan gives you unlimited sub-accounts and branded/custom-domain capabilities. GoHighLevel GoHighLevel

That makes it attractive if you're going to sell clients a package like:

Email + CRM + landing pages + forms + automations + SMS + appointment booking

But if you're just doing newsletters and email automations, $297/month is hard to justify for a small freelance operation.

A wildcard: AcelleMail

acellesend.com takes a completely different approach. It's self-hosted, multi-tenant, and designed specifically for agencies/resellers. Its extended license is currently advertised at $199 one-time, with your own domain/branding and separate client accounts. AcelleMail

The tradeoff is that you become responsible for hosting, SMTP/email infrastructure, deliverability, updates, and technical maintenance. It's potentially extremely cheap at scale, but I wouldn't choose it unless you're comfortable managing the infrastructure.

What I'd choose in your shoes

• 1–5 small clients: MailerLite — simplest and cheapest.
• 5–20 clients and you want your agency branding: Aledamail — probably the sweet spot.
• You want to turn email into a broader recurring marketing service: HighLevel.
• You have technical skills and want maximum margins: AcelleMail.
• You just want the absolute cheapest centralized client management: Spreeflo is worth testing; it charges based on total contacts rather than per-client accounts, though white-labeling is not currently available. Spreeflo

One important consideration: don't just compare software subscription prices. For client work, I'd prioritize separate client workspaces + client-specific sending domains + DKIM/SPF/DMARC + easy client access + agency reporting. Those features matter considerably more than saving $10/month.

If you tell me roughly how many clients you have (e.g. 5, 10, 20) and the typical subscriber count per client, I can calculate the cheapest setup and compare the actual monthly cost across these platforms.

That makes it attractive if you're going to sell clients a package like:

Email + CRM + landing pages + forms + automations + SMS + appointment booking

But if you're just doing newsletters and email automations, $297/month is hard to justify for a small freelance operation.

A wildcard: AcelleMail

acellesend.com takes a completely different approach. It's self-hosted, multi-tenant, and designed specifically for agencies/resellers. Its extended license is currently advertised at $199 one-time, with your own domain/branding and separate client accounts. acellesend.com

The tradeoff is that you become responsible for hosting, SMTP/email infrastructure, deliverability, updates, and technical maintenance. It's potentially extremely cheap at scale, but I wouldn't choose it unless you're comfortable managing the infrastructure.

If you’re a freelance marketer managing several small clients, I’d separate “cheap multi-client management” from “true white-labeling.” They lead to different winners.

My shortlist

🥇 Best value: MailerLite

mailerlite.com is probably the one I'd investigate first.

It specifically supports agencies managing multiple separate client accounts from one login, letting you switch between accounts without maintaining a bunch of separate logins. Each client's subscribers, campaigns, automations and templates remain separated. MailerLite

The catch: MailerLite does not offer native white-labeling. MailerLite

So if your model is:

“I manage email marketing for 5–15 small businesses and just need to operate their accounts efficiently”

MailerLite is very attractive.

🥇 Best true white-label option: HighLevel

gohighlevel.com is much more interesting if you want to resell the platform under your own brand.

Its current pricing shows:

• $97/mo Starter — 3 sub-accounts
• $297/mo Unlimited — unlimited sub-accounts + branded desktop app
• $497/mo Agency Pro — adds SaaS mode and automated sub-account creation/rebilling capabilities GoHighLevel HighLevel Support Portal

So, for example, at $297/month, having 10 clients effectively puts your platform overhead at about $30/client/month before email/SMS usage and other costs.

That's compelling if you can charge clients $75–$200+/month for “email marketing platform + management.”

The important distinction is that HighLevel is far more than an email tool—CRM, funnels, SMS, automation, forms, scheduling, etc. So you're potentially paying for a lot of functionality you may not need.

🥈 Best if automation is your selling point: ActiveCampaign

activecampaign.com has an actual agency/reseller program. You can purchase multiple client accounts and resell them, with discounts increasing as your number of active accounts grows:

• 2–24 accounts: 25% discount
• 25–49: 35%
• 50–99: 45%
• 100+: 55% ActiveCampaign Help Center

That's considerably more agency-friendly than simply buying a separate subscription for every client.

I'd choose this if your clients need sophisticated lead nurturing, segmentation, behavioral automation, CRM integration, etc.

🤑 Best for very small lists: Brevo

brevo.com is worth considering when your clients have relatively small databases but send newsletters regularly.

Its pricing model is heavily oriented around email volume rather than just contact count, which can make it inexpensive for small businesses. A recent agency comparison found Brevo particularly competitive for agencies with many clients and relatively high sending volume. Hack'celeration Sasanova

The downside is that it's not as elegant for the “one agency dashboard → lots of isolated client accounts” workflow as MailerLite or HighLevel.

What I'd do in your position

I'd use this rule:

• 1–5 clients, mostly newsletters: MailerLite
• 5–20 clients, inexpensive email service: MailerLite or Brevo
• Clients need serious automations: ActiveCampaign
• You want to sell a branded “marketing platform” to clients: HighLevel
• You want true white-label + recurring SaaS revenue: HighLevel Agency Pro

My personal pick for a solo freelance marketer: start with MailerLite unless white-labeling is actually something clients are asking for. You can keep each client's billing/data separate while managing them from one login, without committing yourself to a $297/month platform. MailerLite

If your goal is specifically “I want to charge each client $50–$150/mo for email marketing and keep my software costs as close to zero as possible,” I can also compare 5–10 agency/reseller platforms by cost per 5, 10, and 20 clients.

The downside is that it's not as elegant for the “one agency dashboard → lots of isolated client accounts” workflow as MailerLite or HighLevel.

What I'd do in your position

I'd use this rule:

Yes. For a freelance marketer with several small clients, I’d separate “cheap multi-account management” from “true white-label/reseller software.” They lead to different choices.

🥇 My pick: MailerLite

mailerlite.com is probably the sweet spot if you're managing, say, 3–15 small businesses and don't actually need your own branded software.

You can use one login to switch between separate client accounts, with each client's subscribers, campaigns, automations, templates and billing kept separate. MailerLite MailerLite

The important catch: MailerLite is not truly white-label. It explicitly says it doesn't offer a reseller/white-label version. MailerLite

Pricing currently starts around $12/month for Comfort and $25/month for Power; each client account is billed separately. MailerLite

For a freelancer, that's actually a nice arrangement: the client owns/pays for their account, you get access as their marketer. You don't have to absorb everyone's email costs into your own subscription.

🥈 Brevo — potentially even better for an agency

brevo.com is worth serious consideration.

Brevo has centralized multi-account management, so you can switch among client accounts, and its Agency Partner program can pay you recurring revenue for clients you refer. Current partner tiers offer 10–25% revenue share depending on the tier. Brevo

This is particularly attractive if your business model is:

“I manage your email marketing, and I'll set up/manage your Brevo account.”

rather than:

“You are using my proprietary white-labeled email platform.”

🥉 HighLevel — if you actually want to resell the software

gohighlevel.com is the one I'd investigate if your goal is to eventually turn email marketing into a productized agency service.

The current Starter plan is $97/month for 3 sub-accounts. The $297/month Unlimited plan provides unlimited sub-accounts and branded desktop software, which is much closer to genuine white-label/reseller functionality. GoHighLevel GoHighLevel

But $297/month is a very different proposition from MailerLite/Brevo. I'd only choose HighLevel if you're going to have enough clients to justify the fixed cost—or you want its broader CRM, automation, funnel, SMS and agency features.

What I'd do in your shoes

If you're currently a solo freelancer with small clients, I'd start with:

1. MailerLite → cheapest/easiest multi-client setup
2. Brevo → best if you want an agency/partner relationship and recurring commissions
3. HighLevel → only once you have enough clients to make true white-label/reselling worthwhile

One particularly good setup is having each client own their account and billing while you retain manager access. That keeps client data, billing and ownership clean if they ever leave you.

If you tell me roughly how many clients you have (e.g. 5, 10, 20), typical subscriber count per client, and whether you need automation, I can calculate the cheapest setup and compare the actual monthly cost across these platforms.

Yes. For a freelance marketer managing several small businesses, I’d separate “multi-account management” from true white-labeling—they’re surprisingly different.

My shortlist

🥇 Best overall: MailerLite

mailerlite.com

This is probably where I'd start if you're managing, say, 5–20 small clients and want to keep your overhead low.

MailerLite specifically supports agencies: you can use one login to switch between separate client accounts, with each client retaining its own subscribers, campaigns, templates and billing. MailerLite

The interesting part is that you don't have to buy an expensive agency plan. Its current plans start at $12/month for Comfort and $25/month for Power; Power provides unlimited user seats and unlimited monthly email sending. MailerLite MailerLite

The catch: MailerLite isn't truly white-label. It explicitly says it doesn't offer a white-label/reseller version. You can, however, build your own branded dashboard using its API if you really need that. MailerLite MailerLite

Why I like it for a freelancer: have each client own their MailerLite account/billing, you get access, and you manage everything from your agency login. That keeps you from becoming the billing middleman.

🥈 Best for lots of inexpensive client accounts: Brevo

brevo.com

Brevo has a particularly nice agency account-management setup. Its Agency Program gives you centralized multi-account management, so you can switch between client accounts from one place. Brevo

The entry-level pricing is also attractive: Free, then Starter from $9/month, and Standard from $18/month. Brevo Help

The agency program can actually become a revenue source: depending on your partner tier, Brevo currently offers 10%, 20%, or 25% recurring revenue share on referred paying clients for qualifying periods. Brevo

I'd pick Brevo over MailerLite if your clients need email + SMS + transactional email + CRM-ish functionality rather than just newsletters/automations.

🥉 If you mean real white-labeling: GoHighLevel

gohighlevel.com

This is the one I'd investigate if your business model is:

"My clients don't need to know which email/CRM platform I'm using. I want to sell them my marketing platform."

HighLevel is much more agency/reseller-oriented than MailerLite or Brevo. You can put your own branding around the platform and sell it as part of your service.

But: I'd avoid it if you're simply sending newsletters for five local businesses. It's considerably more platform than you need, and the economics make more sense when you're selling a broader recurring marketing service.

What I'd do in your position

If you're primarily a freelance marketer, rather than a SaaS reseller:

MailerLite → first choice
Use separate client accounts, one agency login, and let clients retain ownership of their accounts.

Brevo → second choice
Especially attractive if you're going to manage a larger number of small accounts or need SMS/transactional messaging.

HighLevel → only if white-labeling is central to your business model.

One important distinction: don't confuse “I can manage multiple client accounts from one login” with “white-label.” MailerLite and Brevo are excellent at the former; neither is a conventional fully white-labeled reseller platform. Brevo MailerLite

If you tell me roughly how many clients you expect (e.g. 5, 20, 50), average email-list size, and whether you charge clients separately for the software, I can work out the cheapest setup and your approximate monthly margin across MailerLite vs Brevo vs HighLevel.

Yes. If you're a freelancer managing several small-business clients, I'd prioritize platforms that let you keep clients isolated while avoiding a separate expensive subscription for every client.

My shortlist

1. gohighlevel.com — best if you want to white-label

This is probably the strongest fit if your goal is to sell email marketing as your own service, rather than merely manage clients' accounts.

• $97/mo Starter gives you 3 sub-accounts.
• $297/mo Unlimited gives you unlimited sub-accounts.
• The $297 plan includes a branded desktop app/custom domain, so clients can interact with a platform carrying your branding.
• Email sending is currently $0.675 per 1,000 emails. GoHighLevel HighLevel Support Portal

The catch: $297/mo is a lot if you only have 3–5 tiny clients. It becomes attractive once you're managing enough clients to spread that fixed cost around.

2. activecampaign.com — best for sophisticated automation

ActiveCampaign's Agency Program is unusually useful for freelancers/agencies because you can buy multiple accounts and resell them.

The discounts currently start at:

• 2–24 accounts: 25% off
• 25–49: 35% off
• 50–99: 45% off
• 100+: 55% off

You control what you charge clients, so you can build your management/strategy fee into the price. ActiveCampaign Help Center

I'd pick this over HighLevel if your clients primarily need email automation, segmentation and CRM-style workflows, rather than an entire marketing platform.

3. mailerlite.com — best cheap option if you don't need white-labeling

This may actually be the sweet spot for a solo freelance marketer.

MailerLite explicitly supports agencies: you can use one login to switch between separate client accounts, with each client's subscribers, campaigns, automations and templates isolated. MailerLite

The downside is important: it does not offer true white-label/reseller functionality. MailerLite

But pricing is inexpensive—its paid Comfort plan starts at $12/month, while the free plan supports up to 250 subscribers. MailerLite

So if your clients are happy knowing you're using MailerLite, this is probably the lowest-friction solution.

4. BigMailer — worth looking at for genuine white-label email

BigMailer is much more specifically designed around agencies: client sub-accounts, centralized management and white-labeling the platform itself.

This is more compelling if you want clients to log into your branded email platform, rather than simply having you manage their MailerLite/ActiveCampaign account. Mailfence Blog

5. Aledamail — interesting new flat-fee model

Aledamail is particularly interesting for a small agency because its pricing is based on your overall sending volume rather than charging separately for every client workspace.

Its current published plans start at $59/month, with multi-workspace and white-label functionality included; $149/month covers up to 100,000 emails/month. Aledamail

I'd investigate this one if white-labeling is mandatory but $297/month for HighLevel feels excessive.

What I'd choose in your position

• 1–5 small clients: MailerLite — cheapest and easiest; don't worry about white-labeling unless clients specifically demand it.
• 5–15 clients and you want your own branded platform: Aledamail or BigMailer.
• 10+ clients + you want to build a real agency/reseller business: HighLevel.
• Clients need advanced email automation/CRM: ActiveCampaign Agency.

One important distinction: "manage multiple accounts" and "white-label" are very different features. MailerLite gives you the former but not the latter; HighLevel gives you both.

If you tell me roughly how many clients you have (e.g. 5, 10, 20) and the typical subscriber count per client, I can calculate which option would be cheapest and give you a concrete monthly-cost comparison.

For a freelance marketer managing multiple small clients, I’d prioritize:

1. One login / client workspaces
2. White-label reports or client-facing branding
3. Low cost when each client has a small list
4. Easy handoff if clients want access
5. Good automation without enterprise pricing

Here are the strongest fits:

Hack'celeration AcelleMail## My shortlist for a solo freelance marketer

1. Best overall value: Brevo

brevo.com

Why it fits:

• You can manage many small accounts without paying a huge per-contact bill.
• Good for newsletters, basic automations, transactional email, and small-business clients.
• Better margins if your clients have modest lists and send infrequently. Hack'celeration

Downside:

• It is not a full "your brand, your platform" white-label experience.

Good business model:
Charge clients $100–300/month for email management, keep their Brevo costs low, and include strategy, copy, segmentation, and reporting as your service.

2. Best true white-label option: Acelle Mail

acellemail.com

Why it fits:

• You can run it under your own domain/brand.
• Clients can have separate accounts.
• Designed more like a reseller platform. AcelleMail

Downside:

• You need to handle hosting, SMTP setup, deliverability, updates, and maintenance.

Best if you want to eventually sell:

"YourCompany Email Marketing Platform"

rather than just manage campaigns.

3. Best if clients expect a premium agency experience: Campaign Monitor

campaignmonitor.com

Why it fits:

• Stronger agency workflows.
• Good client separation and reporting.
• Professional templates and dashboards. Hack'celeration

Downside:

• Usually not the cheapest option.

4. Best newer agency-style SaaS white label: Aledamail

aledamail.com

Why it fits:

• Built around agencies managing multiple client workspaces.
• Offers white-label branding and centralized management. Aledamail Aledamail

Downside:

• Newer platform, so I’d evaluate deliverability, integrations, and long-term reliability before putting many clients on it.

What I would choose in your situation

For a freelancer with, say, 5–20 small business clients:

• Starting out: Brevo + your own reporting templates
• Growing into an agency: Campaign Monitor or Aledamail
• Want your own branded SaaS product: Acelle Mail

A practical setup many freelancers use:

• Client pays you a monthly retainer
• You manage campaigns from a central system
• Client sees branded reports
• Email platform cost is either passed through or bundled

If you tell me roughly how many clients you manage (5, 20, 50+) and whether you want clients logging in themselves, I can narrow this to the cheapest workable option.

Yes. For a freelance marketer handling several small businesses, I’d separate “cheap multi-client management” from “true white-labeling.” The cheapest option is not necessarily the best agency platform.

My shortlist

1. Best budget choice: MailerLite

MailerLite is probably where I'd start if you're managing 5–15 relatively small clients and don't actually need clients logging into a white-labeled platform.

One MailerLite login can switch between separate client accounts, with each client retaining its own subscribers, campaigns, automations and templates. MailerLite

The catch: each client account needs its own paid plan, and MailerLite explicitly says it doesn't offer an agency white-label/reseller version. MailerLite MailerLite

The Comfort plan starts at $12/month, while Power starts at $25/month and includes unlimited users. MailerLite

I'd choose this if: you're selling email marketing as a service, rather than selling clients access to your own software.

2. Brevo — good if client lists are small but sending volume varies

Brevo has an agency program where you can switch among client accounts from one dashboard. Brevo

It's particularly interesting when clients have large contact lists but don't email constantly, because Brevo's pricing is primarily based on email volume rather than simply charging more as the contact database grows.

The downside is that it's more of an agency-management/partner arrangement than a completely white-labeled platform.

I'd choose this if: you have clients with very different sending volumes and want to avoid paying separately based purely on subscriber count.

3. Best true white-label: HighLevel

HighLevel is the standout if white-labeling is actually important.

Its current pricing is:

• $97/mo — 3 sub-accounts
• $297/mo — unlimited sub-accounts
• $497/mo — Agency Pro, including SaaS mode and rebilling with markup GoHighLevel HighLevel Support Portal

The $297 plan lets you manage unlimited client subaccounts from one agency account. HighLevel also supports a branded desktop app/custom domain, so clients can interact with the platform under your branding rather than HighLevel's. GoHighLevel

And importantly, its built-in email infrastructure is now available across subaccounts, with email usage currently listed at $0.675 per 1,000 emails. HighLevel Support Portal

So, for example, if you eventually have 20 clients, $297/month works out to roughly $15/client/month before email usage and your other costs—potentially very attractive if you're charging each client $100–300+ for email/CRM/automation.

What I'd do in your position

If you're starting out:
→ MailerLite. Keep the software cost attached to each client and charge them for it.

If you have ~5–10+ clients and want one agency dashboard:
→ Brevo or HighLevel, depending on how much automation/CRM you need.

If your goal is to eventually sell “your own” marketing platform:
→ HighLevel $297/month is much more compelling. Its $497 Pro tier is specifically designed around SaaS/reselling, including automated subaccount creation and markup on usage. GoHighLevel

One important distinction: if by white-label you mean “my clients shouldn't even know which email software powers this”, I'd skip MailerLite. HighLevel is the clear winner of these three.

It's particularly interesting when clients have large contact lists but don't email constantly, because Brevo's pricing is primarily based on email volume rather than simply charging more as the contact database grows.

The downside is that it's more of an agency-management/partner arrangement than a completely white-labeled platform.

I'd choose this if: you have clients with very different sending volumes and want to avoid paying separately based purely on subscriber count.

3. Best true white-label: HighLevel

Yes. For a freelance marketer with multiple small clients, I’d separate the options into “cheap multi-client management” and “true white-label.”

My pick: MailerLite if you don't need true white-label

mailerlite.com is probably the sweet spot for a freelancer.

Its agency setup lets you use one login to switch among separate client accounts, with each client retaining their own subscribers, campaigns, automations, templates and billing. On its higher plan, you also get unlimited user seats. MailerLite

The important catch: MailerLite explicitly does not offer native white-label/reseller functionality. MailerLite

The pricing is attractive for small clients: Comfort starts at $12/month, while Power starts at $25/month and adds unlimited seats, sending, automations, etc. MailerLite MailerLite

Why I'd use it: Have each client own their MailerLite account, then have them grant you access. You don't have to pay for a giant agency platform just to manage newsletters.

Brevo is worth considering

brevo.com has an agency program that allows you to switch between client accounts from your dashboard. It also offers partner commissions—currently 10% at the entry partner level, rising to 25% at higher tiers. Brevo

I'd favor Brevo over MailerLite when your clients send relatively high volumes but have relatively small contact lists, because Brevo's pricing is more oriented around email volume, whereas MailerLite primarily prices around subscriber count. MailerLite

If you specifically want white-label: HighLevel

gohighlevel.com is the much stronger choice if the goal is:

“My client thinks they're using my marketing platform.”

The current $97/month Starter plan gives you 3 sub-accounts. The $297/month Unlimited plan gives you unlimited sub-accounts and agency-oriented features; HighLevel also supports rebilling email/phone costs. GoHighLevel HighLevel Support Portal

HighLevel's agency documentation also specifically lists white-label desktop on the $297 Freelancer/Unlimited-level plan. HighLevel Support Portal

The downside is that $297/month is a lot if you're only managing email newsletters. HighLevel makes more financial sense if you're going to sell clients a broader package—email + CRM + funnels + forms + SMS + automations + booking, etc.

What I'd do in your position

• 1–5 small clients: MailerLite. Let each client own their account; you manage them from one login.
• 5–15+ clients: MailerLite or Brevo, depending on contact/sending volume.
• You want your own branded client portal/platform: HighLevel.
• You want to resell “email marketing software” as part of your service: HighLevel becomes much more interesting.
• You just want to hide the software's logo from emails: Don't overpay for white-label software—MailerLite's paid plans can remove its branding. MailerLite

Bottom line: For a solo freelance marketer, I'd start with MailerLite unless true white-labeling is an explicit selling point of your service. HighLevel is powerful, but $297/month is hard to justify solely for email.

If you tell me roughly how many clients you have (e.g. 5, 10, 20), average subscribers per client, and whether clients need to log in themselves, I can narrow this down to the cheapest setup and estimate your monthly cost.

The important catch: MailerLite explicitly does not offer native white-label/reseller functionality. MailerLite

The pricing is attractive for small clients: Comfort starts at $12/month, while Power starts at $25/month and adds unlimited seats, sending, automations, etc. MailerLite MailerLite

Why I'd use it: Have each client own their MailerLite account, then have them grant you access. You don't have to pay for a giant agency platform just to manage newsletters.

Brevo is worth considering

brevo.com has an agency program that allows you to switch between client accounts from your dashboard. It also offers partner commissions—currently 10% at the entry partner level, rising to 25% at higher tiers. Brevo

I'd favor Brevo over MailerLite when your clients send relatively high volumes but have relatively small contact lists, because Brevo's pricing is more oriented around email volume, whereas MailerLite primarily prices around subscriber count. MailerLite

If you specifically want white-label: HighLevel

gohighlevel.com is the much stronger choice if the goal is:

“My client thinks they're using my marketing platform.”

The current $97/month Starter plan gives you 3 sub-accounts. The $297/month Unlimited plan gives you unlimited sub-accounts and agency-oriented features; HighLevel also supports rebilling email/phone costs.

HighLevel's agency documentation also specifically lists white-label desktop on the $297 Freelancer/Unlimited-level plan.

Yes. For a freelance marketer with several small clients, I’d focus on multi-account management first and true white-labeling second. The cheapest options often let you manage clients centrally without actually hiding the software brand.

My shortlist

🥇 Best value: Brevo

Brevo is probably the first one I'd investigate for your situation.

Its Agency Partner Program gives you centralized multi-account management, so you can switch between clients from your own dashboard rather than juggling separate logins. It's also free to join, and the agency program offers 10–25% recurring revenue share depending on partner tier. Brevo Brevo Help

brevo.com

The important distinction: this isn't traditional white-label SaaS where your clients see only your branding. But for a freelancer, you can simply manage the client's Brevo account while presenting your agency as the service provider.

I'd choose Brevo if: you have 5–30 small clients and want each client to retain ownership of their own email account/billing.

🥈 Cheapest/simple option: MailerLite

MailerLite is particularly attractive if your clients are small businesses that mostly need newsletters, automations, forms and basic landing pages.

You can manage multiple client accounts from one login, switching between them in two clicks. Each client retains a separate subscriber database, campaigns, automations and billing. MailerLite MailerLite

Current pricing starts at $12/month for the Comfort plan for up to 500 subscribers, with a free tier for up to 250 subscribers. MailerLite

mailerlite.com

The downside is significant for your specific question: MailerLite explicitly does not offer a reseller/white-label version. MailerLite

So I'd use it if your clients don't care that the underlying platform is MailerLite.

🥉 If you really want white-label: GoHighLevel

This is the one I'd investigate if your business model is:

"I provide a complete marketing system to clients for $300–$1,000/month."

rather than:

"I manage your newsletter for $100/month."

GoHighLevel is designed around agencies managing multiple client subaccounts and putting the platform behind their own agency brand. You're effectively selling your marketing platform/service, rather than giving every client a separate inexpensive email-software subscription.

The economics become much better once you're charging clients a recurring management fee, but it's probably overkill if all you need is email newsletters.

What I'd do in your shoes

For a freelance marketer managing small accounts, I'd structure it like this:

Client owns account → you get admin access → client pays software → you charge management fee.

I'd start with Brevo because its agency infrastructure is unusually well suited to this arrangement. Brevo Help

For very small/simple clients, I'd consider MailerLite instead.

And if you want to build a white-labeled "marketing platform" that you resell, I'd move up to GoHighLevel rather than trying to hack together white-labeling with MailerLite.

One particularly useful distinction

If by "white-label" you mean "I don't want my client seeing Mailchimp/Brevo/MailerLite anywhere", your choices narrow considerably.

If you mean "I want one dashboard where I can manage 10–20 clients and have each client isolated from the others", Brevo and MailerLite are much more affordable.

If you tell me roughly how many clients you manage (e.g. 5, 10, 25) and the typical subscriber count per client (e.g. 500–2,000), I can calculate which setup would be cheapest and what you'd actually pay per month.

Yes. For a freelancer managing several small-business clients, I’d separate “multi-client management” from true white-labeling—because many inexpensive platforms do the former but not the latter.

My shortlist

🥇 For your situation: MailerLite

mailerlite.com

I'd probably start here if you're primarily doing the marketing yourself for clients, rather than selling them your own branded email platform.

MailerLite specifically supports agencies managing multiple separate client accounts from one login, with each client's subscribers, campaigns, automations and templates kept separate. You can switch between accounts in two clicks. Its agency setup also doesn't charge you a separate agency-management fee. MailerLite

The catch: it is not true white-label. MailerLite explicitly says it doesn't offer a white-label/reseller version. MailerLite

Its paid plans currently start around $12/month for a small list, with a $25/month Power tier that adds unlimited seats and more capabilities. MailerLite

So you could have, for example:

• Client A → their own MailerLite account
• Client B → their own MailerLite account
• Client C → their own MailerLite account
• You → manage all three from your agency login

That's a very clean arrangement for a freelancer.

🥈 If you absolutely need white-label: AcelleMail

acellesend.com

This is the interesting budget option.

AcelleMail is self-hosted, multi-tenant and designed specifically for agencies/resellers. You can run it on something like email.youragency.com, put your branding on it, create separate client accounts/plans, and have clients log into your branded platform. The current extended license is advertised at $199 one-time, rather than a recurring SaaS fee. AcelleMail

The downside is important: you become responsible for the infrastructure. You'll need hosting and an SMTP/email-delivery provider, plus you'll have more technical administration and deliverability responsibility.

I'd choose this if you're thinking:

"I want email marketing to look like my service, and I eventually want 10–50 clients."

🥉 If you want the easiest agency experience: Campaign Monitor

campaignmonitor.com

Campaign Monitor is much more purpose-built around agencies. It lets you maintain separate client accounts, manage campaigns/automations/reporting, control permissions, and—importantly—offers private-label options with your own logo, colors and domain in the client-facing experience. Campaign Monitor

It's a better fit if clients will actually log into the platform themselves.

The tradeoff is that it's generally harder to make the economics work when you're managing lots of tiny clients compared with MailerLite.

One other interesting option: Spreeflo

spreeflo.com

Spreeflo charges based on total contacts across all clients, rather than per-client or per-seat. It currently advertises:

• 5 clients / 5,000 contacts → $30/mo
• 10 clients / 15,000 contacts → $53/mo
• 20 clients / 50,000 contacts → $160/mo

It supports unlimited clients, but white-labeling is currently listed as being on its roadmap, so I wouldn't choose it if white-label is non-negotiable. Spreeflo

What I'd do as a freelancer

If your clients are mostly small businesses with 500–5,000 subscribers each, I'd go:

MailerLite → easiest + inexpensive

If you want to eventually sell “Email Marketing Platform by [Your Agency]”:

AcelleMail → most interesting low-cost true white-label option

If you want clients to log in and see a polished agency-branded system without you maintaining servers:

Campaign Monitor → better agency experience

And I'd avoid HighLevel/Vendasta-type solutions unless you're planning to sell a much broader marketing/CRM package; they're overkill if all you need is newsletters, automations and reporting.

If you tell me roughly how many clients you have now (e.g. 5, 10, 20) and their typical subscriber counts, I can work out the cheapest setup and monthly cost, including whether it's better to have each client pay their own account or put everyone under your agency.

One other interesting option: Spreeflo

For a freelance marketer managing several small clients, I’d prioritize multi-client management, client separation, white-label reporting/branding, and predictable costs over raw email features. The best fit depends on whether you need clients to see your brand (true white-label) or just want to manage their accounts efficiently.

My shortlist for a solo freelance marketer

1. Best overall value: brevo.com

Use this if:

• Your clients are small businesses
• You manage newsletters, promotions, simple automations
• You don’t need clients logging into a branded portal

Pros:

• Low cost
• Simple onboarding
• Good for many small lists

Cons:

• Not a true white-label agency platform

2. Best “agency-lite” option: campaignmonitor.com

Use this if:

• You want a professional client-facing workflow
• You need approvals, reporting, and multiple brands

Pros:

• Built with agencies in mind
• Better client presentation

Cons:

• Can become expensive as lists grow

3. Best if you want to sell email marketing as your own service: igsendmail.com

Use this if:

• You want clients to think “your agency” runs the platform
• You plan to charge a monthly management fee

Pros:

• White-labeled dashboard
• Client sub-accounts
• Reseller positioning

Cons:

• Agency pricing makes more sense after you have several paying clients IGSendMail

4. Cheapest “own the stack” route: acellemail.com

Use this if:

• You are comfortable with hosting/DNS/email deliverability
• You want maximum margin

Pros:

• One-time software approach
• Full branding control

Cons:

• More technical responsibility AcelleMail

A practical setup for a freelance marketer

A common low-cost path:

• 1–5 clients: Brevo or Campaign Monitor
• 5–20 clients: Campaign Monitor, ActiveCampaign, or an agency-focused platform
• 20+ clients / recurring retainers: Move to true white-label like IGSendMail or a self-hosted solution

If your goal is “I want clients to pay me $200–$500/month and never see the underlying email software,” I’d lean toward a true white-label platform. If your goal is “I just need to manage campaigns efficiently for clients,” I’d start cheaper with Brevo or Campaign Monitor.

Yes. For a freelance marketer with several small clients, I’d separate “easy multi-client management” from true white-label/reseller software—they’re not the same thing.

My shortlist

*Brevo's agency capabilities and account structure should be checked against your exact setup before committing.

🥇 Best cheap option: MailerLite

mailerlite.com is probably where I'd start if you're managing campaigns for clients rather than selling them your own email platform.

You can manage separate client accounts from one login, switch between them quickly, and each client keeps separate subscribers, campaigns, automations and billing. Their Power plan currently starts at $25/month and provides unlimited user seats. MailerLite MailerLite

The catch: MailerLite explicitly does not offer true white-labeling. You can remove MailerLite branding from emails on paid plans, but clients will still be using MailerLite. MailerLite

So I'd use it if your model is:

“I manage your email marketing for you.”

rather than:

“Here's our agency's proprietary email marketing platform.”

🥈 Best if you genuinely want white-label: Acelle Mail

acellesend.com is much more interesting if white-labeling is a core part of your business.

It's self-hosted and has multi-tenant client accounts, your own domain/branding, client-specific plans, and billing. The current extended license is listed at $199 one-time, after which your ongoing infrastructure cost is primarily hosting and email delivery. AcelleMail

The downside is that you're taking on more technical responsibility—hosting, updates, SMTP infrastructure, deliverability, backups, etc.

For a technically comfortable freelancer with, say, 5–30 clients, though, this can become dramatically cheaper than paying SaaS fees for every client.

🥉 Best turnkey white-label: IGSendMail

igsendmail.com is designed specifically around the model you're describing: one agency dashboard, client subaccounts, custom branding/domain, client reporting and centralized billing. IGSendMail

Its current reseller pricing starts at $199/month ($159/month annually) for unlimited client accounts and 500,000 emails/month. IGSendMail

That's considerably more expensive than MailerLite, but if you're charging each client $50–$150+/month for email management, the economics can make sense.

What I'd choose at different client counts

• 1–5 clients: MailerLite. Don't over-engineer it.
• 5–15 clients: MailerLite or Brevo if you're simply managing accounts; start considering a reseller platform if you want clients to log in themselves.
• 15–30+ clients: Look seriously at Acelle or a true white-label reseller platform.
• You want to sell “our email marketing platform” as a recurring service: Acelle if you're technical; IGSendMail if you want turnkey.
• You just want to manage clients efficiently: MailerLite is probably the sweet spot.

One other option worth looking at is Spreeflo, which currently advertises unlimited client accounts and charges based on aggregate contacts rather than per-client accounts—for example, $30/month for 5,000 total contacts and $53/month for 15,000. However, its white-label functionality is currently described as being on the roadmap. spreeflo.com

My personal pick for a solo freelance marketer: start with MailerLite, unless white-labeling is something you're actually going to charge clients for. In that case, I'd skip the agency add-ons of mainstream ESPs and go straight to Acelle or a true reseller platform.

mailerlite.com is probably where I'd start if you're managing campaigns for clients rather than selling them your own email platform.

You can manage separate client accounts from one login, switch between them quickly, and each client keeps separate subscribers, campaigns, automations and billing. Their Power plan currently starts at $25/month and provides unlimited user seats. MailerLite MailerLite

The catch: MailerLite explicitly does not offer true white-labeling. You can remove MailerLite branding from emails on paid plans, but clients will still be using MailerLite. MailerLite

So I'd use it if your model is:

“I manage your email marketing for you.”

rather than:

“Here's our agency's proprietary email marketing platform.”

🥈 Best if you genuinely want white-label: Acelle Mail

acellesend.com is much more interesting if white-labeling is a core part of your business.

It's self-hosted and has multi-tenant client accounts, your own domain/branding, client-specific plans, and billing. The current extended license is listed at $199 one-time, after which your ongoing infrastructure cost is primarily hosting and email delivery. acellesend.com

The downside is that you're taking on more technical responsibility—hosting, updates, SMTP infrastructure, deliverability, backups, etc.

For a technically comfortable freelancer with, say, 5–30 clients, though, this can become dramatically cheaper than paying SaaS fees for every client.

🥉 Best turnkey white-label: IGSendMail

Yes. For a freelance marketer with several small clients, I’d separate “multi-client management” from true white-labeling—a lot of inexpensive tools do the former but not the latter.

My shortlist

🥇 Best cheap option: MailerLite

This is probably where I'd start if you're one freelancer managing, say, 5–20 small businesses.

MailerLite specifically has an agency workflow where one login can switch between separate client accounts, with each client's subscribers, campaigns, automations, templates and billing kept separate. There are also no per-seat fees on its agency setup. www.mailerlite.com

The catch: it's not truly white-label. MailerLite explicitly says it doesn't offer a white-label/reseller version of the app. www.mailerlite.com

So you can present yourself as the marketer managing their account, but you can't really turn MailerLite into “YourAgency Email Platform.”

🥈 Best if your clients send relatively little: Brevo

Brevo is particularly interesting for small clients because its pricing is based heavily on email volume rather than simply stacking up expensive contact-based plans.

A 2026 agency comparison also found Brevo to be the strongest value option for boutique agencies, specifically because pay-per-send economics can work well across multiple small lists. Its downside is that it doesn't provide the same polished native multi-client dashboard as a dedicated agency platform. hackceleration.com

I'd seriously consider this if your clients are businesses like:

• local contractors
• dentists
• consultants
• realtors
• restaurants
• small professional services firms

where you're sending a newsletter once or twice a month rather than running huge automated programs.

🥇 Best actual white-label: HighLevel

If by white-label you mean:

“I want my client to log into a platform that looks like my software, not HighLevel.”

then HighLevel is the standout.

The current pricing is roughly:

• $97/mo — up to 3 sub-accounts
• $297/mo — unlimited sub-accounts + branded desktop app/custom domain
• $497/mo — Agency Pro/SaaS features, including the ability to resell with markup

www.gohighlevel.com

The $297 plan is where it becomes particularly interesting for a freelancer/agency: you can have unlimited client sub-accounts under one agency account and brand the interface with your own domain/look and feel. www.gohighlevel.com

But I'd not buy HighLevel solely for email marketing with two or three tiny clients. You're paying for a much larger CRM/marketing platform.

What I'd do in your position

1–5 clients:
→ MailerLite. Cheapest/easiest and excellent for straightforward newsletters + automations.

5–20+ small clients:
→ Brevo if their email volumes are modest. The economics can be very good.

You want to sell “email marketing software” as part of your service:
→ HighLevel $297/mo becomes much more compelling because you can put each client into a separate sub-account and brand the experience as your own.

You want sophisticated email automation rather than white-labeling:
→ ActiveCampaign is worth considering, particularly if you're charging clients for automation strategy/buildouts.

One important distinction

I'd actually avoid paying for true white-label unless clients need to log in themselves.

If you're doing the work yourself—building campaigns, managing lists, reporting results—the much cheaper model is:

Your agency login → separate client accounts → client sees your reports

rather than:

Your branded SaaS platform → clients log in → you resell the software.

That distinction can save you hundreds of dollars a month.

If you tell me roughly how many clients you have (e.g. 5, 10, 20), average list size, and whether clients need their own logins, I can narrow this to the 2–3 cheapest setups and estimate your monthly cost.

Yes. For a freelance marketer with several small clients, I’d separate the options into “cheap multi-client management” and “true white-label.”

My picks

1. MailerLite — best if you don't actually need white-label

This is probably where I'd start as a solo freelancer. One login can switch between separate client accounts, with each client's subscribers, campaigns, automations, and templates kept separate. The paid Comfort plan starts at $12/month, while Power starts at $25/month and includes unlimited user seats. MailerLite MailerLite

The catch: MailerLite explicitly does not offer a white-label/reseller version. MailerLite

So you could manage 5–10 small clients fairly inexpensively, but clients would know they're using MailerLite.

mailerlite.com

2. MailerSend — interesting if white-label matters

MailerSend is particularly interesting for an agency because its Professional offering is explicitly positioned for agencies and white-label resellers, with large numbers of domains, users, templates, etc. MailerSend MailerSend

However, there's an important distinction: MailerSend is more email infrastructure/sending focused than a polished all-in-one newsletter marketing platform. Its low-cost Hobby plan is $7/month for 5,000 emails, while Starter is $35/month for 50,000 emails. MailerSend MailerSend

mailersend.com

3. HighLevel — best true agency platform, but not “cheap”

HighLevel is the one I'd consider if you're trying to build an agency product, rather than simply provide email marketing services.

Its Agency Unlimited plan is currently $297/month and gives you unlimited subaccounts plus a branded desktop app/custom domain. GoHighLevel

That's expensive if you have three $100/month clients. But if you're managing 10–30 clients and charging each one for a branded marketing platform, the economics become much more attractive.

gohighlevel.com

What I'd do in your situation

If you're sending campaigns for clients and they don't need their own login, I'd choose MailerLite and simply create/manage a separate account for each client.

If clients need to log in and see a platform branded as yours, I'd look at MailerSend or HighLevel, depending on whether you need just email or a complete CRM/automation system.

If you're trying to keep your total software bill under ~$50–100/month, I would not jump to HighLevel. MailerLite/MailerSend are much more economical at that stage.

If you tell me roughly how many clients you have (e.g. 5, 10, 20), average subscriber count per client, and whether clients need their own login, I can narrow this down to the cheapest setup and estimate your monthly cost.

Yes. For a freelance marketer managing several small-business clients, I’d separate the options into two categories: cheap multi-client management vs. true white-labeling.

🥇 My pick: MailerLite

MailerLite is probably the sweet spot for your situation.

Its agency setup lets you manage separate client accounts from one login, switching between them without logging in and out. Each client retains separate subscribers, campaigns, automations, and templates. www.mailerlite.com

The important catch: MailerLite isn't actually white-label. Their documentation explicitly says they don't offer a white-label/reseller version. www.mailerlite.com

Pricing starts around $12/month, and the Power plan starts around $25/month with unlimited users and sending. www.mailerlite.com

Why I'd use it as a freelancer: have each client own/pay for their MailerLite account, while you get agency access. That keeps your software cost extremely low and makes client handoff clean.

🥈 If true white-labeling matters: HighLevel

HighLevel is much more agency-oriented. It supports separate client subaccounts and has actual white-label/client-facing capabilities, rather than simply giving you access to multiple accounts. Its current plans include Starter, Unlimited and Agency Pro, with additional white-label-related services available depending on the plan/add-ons. help.gohighlevel.com

The downside is that it's considerably more platform than you need if you're primarily doing newsletters and basic automations. I'd choose it when you're selling clients a broader marketing system—CRM, funnels, automations, lead management, etc.—rather than just email.

🥉 Brevo for ultra-low-cost clients

Brevo starts at $9/month and prices heavily around sending volume. Its free tier allows 300 emails/day, while Starter removes the daily sending limit. help.brevo.com

It's attractive if you have clients with tiny lists and infrequent newsletters, but I wouldn't choose it primarily for agency account management.

What I'd do in your shoes

If you're managing, say, 5–20 local/small-business clients, I'd use:

MailerLite → clients own their accounts → you manage them through your agency login.

Then charge the client something like:

• $100–250/mo for basic newsletter management
• $250–500+/mo for newsletters + automations + reporting
• Software billed separately to the client

That way you're not eating the cost of 10 different email accounts, and the client retains ownership of their audience/data.

If you specifically want to sell "your own branded email marketing platform" where the client doesn't see MailerLite/HighLevel branding, I'd go HighLevel instead.

Bottom line:
👉 Cheapest/practical: MailerLite
👉 Best true agency/white-label solution: HighLevel
👉 Cheapest for tiny sending volumes: Brevo

If you tell me roughly how many clients you have, average subscriber count per client, and whether you need automations, I can calculate which one would actually cost you the least per month.

Yes. For a freelancer managing several small-business clients, I’d separate “cheap multi-account management” from true white-labeling—because the cheapest option often isn't the one with full white-label branding.

My shortlist

1. Brevo — probably my first choice for your situation

Brevo Agency Program

Brevo has a particularly good agency model: you can manage multiple client accounts from one login, switch between accounts, and clients can retain their own accounts/billing. Its agency program also offers 10–25% recurring revenue share depending on your partner tier. www.brevo.comhelp.gohighlevel.com

That's attractive if you're charging clients for your marketing service while having them pay their own email software bill.

I'd choose this if: you have ~3–20 small clients and don't actually need your own logo/domain inside the email platform.

2. MailerLite — best for keeping things cheap and simple

MailerLite for Agencies

MailerLite now explicitly supports agencies managing separate client accounts from one login, with each client retaining separate subscribers, campaigns, automations, templates and billing. www.mailerlite.com

The catch: MailerLite does not offer true white-labeling. It says agencies can build their own white-label dashboard through its API, but the normal product isn't white-labeled. www.mailerlite.com

Its paid plans start around $12/month, although each client account is separately billed rather than giving you an agency-wide pool. www.mailerlite.com

I'd choose this if: your clients are small, you want an easy interface, and you don't care whether they see MailerLite branding.

3. HighLevel — the one I'd pick if white-labeling is important

HighLevel

This is considerably more expensive, but it's designed around the agency/subaccount model.

• $97/mo: 3 subaccounts
• $297/mo: unlimited subaccounts + white-label desktop
• $497/mo: adds SaaS mode, allowing you to sell the software under your own brand and rebill clients with markup. www.gohighlevel.com

So, for example, at $297/mo with 10 clients, your underlying platform cost is roughly $30/client/month before email/SMS usage and other costs. At 20 clients, it's about $15/client/month.

The $497 plan is much more interesting if you're effectively trying to turn your freelance marketing operation into a mini SaaS/agency platform. HighLevel's current SaaS features let you create client accounts and rebill usage, and its newer Multi-Brands functionality supports up to two distinct brands in one SaaS account. help.gohighlevel.com

What I'd do in your shoes

1–5 clients:
→ MailerLite or Brevo, with each client paying their own subscription.

5–20 clients:
→ Brevo is probably the sweet spot. You get centralized management without committing to a $300/month agency platform.

10+ clients + you want your own branded portal:
→ HighLevel $297/mo starts making sense.

You want to sell “email marketing software” under your own brand:
→ HighLevel $497/mo/SaaS mode is the serious option.

One important distinction: don't confuse “I can manage all my clients from one login” with “white-label.” Brevo and MailerLite are excellent at the former; HighLevel is much closer to the latter.

If you tell me roughly how many clients you have (e.g. 5, 10, 20), average subscribers per client, and whether clients need to log in themselves, I can calculate the cheapest setup and break down the cost per client for 3–4 options.

Yes. For a freelance marketer with several small clients, I’d prioritize agency/client management and white-labeling, not just the cheapest per-email price.

My shortlist

1. MailerSend — my top pick

MailerSend is unusually well suited to your situation. Its agency setup lets you manage multiple clients from one account, while keeping each client's domains, settings, files and reporting separate. Its Professional plan gives you unlimited users, domains and sender identities, so adding another small client doesn't necessarily mean another subscription. www.mailersend.com

The catch is price: Professional is currently $110/month monthly or $88/month when billed annually, with 50,000 emails/month. That's more than a basic freelancer tool, but potentially very economical once you're managing ~5–10 clients. www.mailersend.com

MailerSend

2. Brevo — best if each client should have their own account

Brevo has an Agency Partner Program specifically for agencies and freelancers. You can switch between client accounts from your dashboard and manage clients centrally. The partner program is free to apply for and also offers revenue sharing. www.brevo.com

The important distinction: true centralized sub-account management is an Enterprise feature, so I wouldn't choose Brevo specifically for white-label multi-account management if you're only managing a handful of tiny clients. help.brevo.com

For ordinary client accounts, though, Brevo is inexpensive: Starter starts at $9/month, Standard at $18/month, and there's a free tier. help.brevo.com

Brevo

3. SendPulse — best dirt-cheap option

If your clients are genuinely small, SendPulse is worth looking at. Its free tier allows 500 subscribers and 15,000 emails/month, while paid plans start around $9.60/month for 500 subscribers when billed annually. Paid plans remove SendPulse branding. sendpulse.com

It's not as elegant for agency account management as MailerSend/Brevo, but the economics are excellent.

SendPulse

4. MailerLite — best easy-to-use option

MailerLite is excellent if you're essentially running campaigns for clients rather than needing a sophisticated agency control panel. Paid plans start at $12/month, with Power starting at $25/month and unlimited user seats on Power. www.mailerlite.com

However, this is a significant drawback for your use case: each client needs their own account and plan. MailerLite explicitly says it doesn't offer discounts for multiple accounts. www.mailerlite.com

MailerLite

What I'd do in your shoes

If you're managing 3–10 small businesses, I'd rank them:

MailerSend > Brevo Agency Partner > SendPulse > MailerLite

But there's an important business-model distinction:

• You want clients to see your agency's branding and you want one backend: MailerSend
• You want each client to own their account while you manage access: Brevo
• You want to spend as little as possible: SendPulse
• You just need a dead-simple email tool and don't mind separate subscriptions: MailerLite

If you tell me roughly how many clients you have (e.g. 5, 10, 20), average subscriber count per client, and whether you need clients to log in themselves, I can work out the cheapest setup and approximate monthly cost for you.

Yes. For a freelance marketer managing several small clients, I’d prioritize multi-account management over true white-labeling unless you specifically want clients to log into a platform branded as your agency.

My shortlist

🥇 Best overall: MailerLite

MailerLite is probably the sweet spot for your situation.

You can manage multiple separate client accounts from one login, switching between them in two clicks. Each client retains separate subscribers, campaigns, templates and billing. www.mailerlite.com

The catch: it isn't actually white-label. MailerLite explicitly says it doesn't offer a white-label/reseller version. www.mailerlite.com

Pricing starts around $12/month for its current entry paid plan, while its Power plan starts at $25/month and includes unlimited users and unlimited monthly emails. www.mailerlite.com

Why I'd choose it: Your clients can own/pay for their own accounts while you retain access and manage everything. That's a very clean freelancer arrangement.

🥈 Best for lots of tiny clients: Brevo

Brevo is particularly attractive if your clients have small lists but don't necessarily send constantly.

Its agency program provides centralized multi-account management, so you can switch among client accounts. Brevo also offers agency partners revenue sharing of 10–25% depending on partner tier. www.brevo.com

The pricing is unusually friendly at the low end: Free, then Starter from $9/month and Standard from $18/month. help.brevo.com

My pick if: you have, say, 5–15 local businesses each with a few hundred/thousand subscribers and modest monthly sending.

🥉 Cheapest/simple option: EmailOctopus

EmailOctopus is worth looking at if you don't need sophisticated automation.

Its free tier allows 2,500 subscribers and 10,000 emails/month, while Pro starts at $9/month (annual billing) for 10,000 subscribers. Pro also permits unlimited users and removes EmailOctopus branding. www.mailerlite.comemailoctopus.com

The downside for an agency is that it's not as elegant for centrally managing a portfolio of client accounts as MailerLite or Brevo.

🏆 If you mean real white-labeling: GoHighLevel

GoHighLevel is a different beast.

Its agency plans support separate client subaccounts, and the higher-tier SaaS Pro plan ($497/month) provides actual white-label/SaaS functionality—you can put your branding, domain and pricing on the platform and effectively resell it as your own software. www.gohighlevel.ai

But $497/month is overkill if you're primarily doing email marketing for a handful of small businesses.

It becomes interesting when you're selling a package like:

"We'll manage your email + CRM + SMS + automations + appointment booking + reputation management for $299/month."

Then the software itself becomes part of your recurring revenue.

What I'd do in your shoes

1–5 clients: MailerLite
5–20+ small clients: Brevo
Ultra-budget/simple newsletters: EmailOctopus
You want your clients to see your software/brand: GoHighLevel

One particularly good model is having each client own their MailerLite/Brevo account and billing, while you get delegated access. You avoid paying for all of their subscriber databases yourself, clients don't feel locked in, and you can charge your own management fee on top.

If you tell me roughly how many clients you have, average subscribers per client, and whether you want clients to log in themselves, I can narrow this down to the cheapest setup and estimate your monthly software cost.

If you’re a freelance marketer with several small-business clients, I’d prioritize multi-account management + low cost over true white-labeling. The cheapest platforms that actually work well for this are:

My recommendation: Brevo

For your situation, Brevo is probably the sweet spot.

Its agency program gives you centralized multi-account management, so you can switch between client accounts without maintaining a bunch of separate logins. It also offers revenue sharing of 10–25% depending on your agency tier. www.brevo.comwww.mailerlite.comwww.mailerlite.com

The big advantage is that you can have each client own their account and billing, while you retain access as their marketer. That's cleaner than putting all clients under one giant account.

Brevo Agency Program

MailerLite is arguably even better for simplicity

If you're primarily doing newsletters, automations, forms and basic funnels, I'd seriously consider MailerLite.

It explicitly supports agencies managing multiple separate client accounts from one login, with two-click account switching. Each client retains their own subscribers, campaigns, templates and billing. www.mailerlite.com

The catch: MailerLite does not offer true white-label/reseller software. www.mailerlite.com

That's actually fine for many freelancers. You can brand your service while the client knows you're managing their MailerLite account.

Its paid plans currently start around $12/month, although pricing scales with subscriber count. www.mailerlite.com

If you specifically want true white-label: HighLevel

HighLevel is the obvious choice if you eventually want to sell email marketing as an agency product under your own brand.

But it's considerably more expensive:

• $97/mo — 3 client sub-accounts
• $297/mo — unlimited sub-accounts + white-label desktop
• $497/mo — adds SaaS mode and more agency/reselling capabilities help.gohighlevel.comwww.mailerlite.com

Its email sending is usage-based at $0.675 per 1,000 emails, and the $297/$497 tiers support email rebilling to subaccounts. help.gohighlevel.com

So I'd not pay $297/month just to white-label email if you only have, say, 3–8 small clients.

What I'd do in your shoes

1–5 clients:
→ MailerLite or Brevo

5–15 clients:
→ Brevo is probably my pick because centralized account management + agency program becomes increasingly valuable.

You want clients to see your brand instead of the software's brand:
→ HighLevel, but only once you're making enough recurring revenue to justify ~$297/month.

You want to resell email marketing as a product:
→ HighLevel becomes much more interesting because of its subaccounts, rebilling and white-label capabilities.

Bottom line: For an independent freelancer trying to keep overhead low, I'd start with Brevo. If your clients mostly need straightforward newsletters/automations, MailerLite may be even simpler and cheaper. I wouldn't jump to HighLevel until you have enough recurring clients to make the $297/month agency tier economically sensible. www.mailerlite.com

If you're a freelance marketer with several small clients, I'd separate “manage multiple accounts” from true “white-label.” They lead to very different best choices.

My picks for your situation

1. MailerLite — best if you mainly need inexpensive client management.

MailerLite explicitly supports agencies switching between separate client accounts from one login. Each client retains separate subscribers, campaigns, templates and billing, so you don't have to consolidate everyone's data into one account. It also doesn't charge a special agency/white-label fee. www.mailerlite.comwww.mailerlite.com

The catch: each client needs their own paid account/billing, so it isn't ideal if you're trying to absorb the software cost and resell it under your own brand. www.mailerlite.comwww.mailerlite.com

2. HighLevel — best if you're actually building a small agency.

This is the strongest conventional option if you want clients to perceive the email/CRM/automation platform as your service. The $97/month plan gives you 3 subaccounts; $297/month gives unlimited subaccounts. Its Agency Pro tier adds SaaS Mode and the ability to rebill email/phone usage with markup. www.gohighlevel.com

At $297/month, for example, you could have 10–20 small clients without paying another software subscription for each one. That's considerably more attractive once you have a decent client roster.

3. AcelleMail — the interesting option if true white-label is important.

This is more technical, but potentially much cheaper at scale. Acelle's agency version is self-hosted, multi-tenant and designed for resellers: clients can have separate accounts/plans while the interface runs under your domain and branding. The extended license is currently advertised at $199 one-time, although you'll need to account for hosting and SMTP/email-delivery costs. acellesend.com

That makes it particularly interesting if you're comfortable managing some infrastructure.

4. Spreeflo — worth watching if you're extremely cost-conscious.

It advertises unlimited clients with pricing based on total contacts rather than the number of clients, starting at $13/month. However, white-label isn't available yet according to its current agency page, so I wouldn't choose it if white-labeling is a must-have. spreeflo.com

What I'd do in your shoes

• 1–5 clients: MailerLite. Keep each client in their own account and charge a management fee.
• 5–15 clients: I'd seriously consider HighLevel if you're providing automation/CRM along with email.
• 15+ small clients: HighLevel, or AcelleMail if you're technically comfortable and want maximum margin.
• You specifically want clients to see your brand instead of MailerLite/HighLevel: AcelleMail or HighLevel are the more relevant choices.
• You just want one convenient login without true white-label: MailerLite is probably the sweet spot.

One important distinction: white-labeling the software UI isn't the same as sending email from the client's branded domain. You generally want each client's emails authenticated with their own domain (SPF/DKIM/DMARC), regardless of which platform you choose.

If you tell me roughly how many clients you have (e.g. 5, 10, 20) and the typical list size (e.g. 500–2,000 subscribers each), I can work out the cheapest setup and what you'd need to charge each client to make it profitable.

Yes. For a freelance marketer with several small clients, I’d prioritize multi-account management and low overhead over a traditional “white-label email platform.” There are a few good options:

🥇 Best value: EmailSendX

EmailSendX is particularly interesting for your situation. It's explicitly designed around agencies and multiple brands.

Its current pricing is:

• $0/mo — 1 workspace
• $12/mo — 3 workspaces
• $24/mo — 10 workspaces
• $83/mo — 25 workspaces

Each workspace isolates contacts, templates, branding, sending providers, and users. It also supports white-labeling and lets you bring your own sending provider such as Amazon SES, SendGrid, Brevo, Mailgun, etc. emailsendx.com

That makes it unusually attractive if you're managing, say, 3–10 small businesses. Your software cost could be only $12–24/month, with the actual email-sending cost handled separately.

🥈 Best conventional option: MailerLite

MailerLite is probably what I'd choose if you don't actually need clients to see a completely rebranded platform.

MailerLite lets you manage separate client accounts from one login, switch between them in two clicks, and keep subscribers/campaigns/templates/billing separated. It explicitly says there are no per-seat fees or white-label upcharges. www.mailerlite.com

The catch: MailerLite does not offer native white-labeling. www.mailerlite.com

For many freelancers, that's actually fine: the client owns the MailerLite account, you get access, and you manage it for them. This is also cleaner when a client eventually leaves.

🥉 Best if you want clients to own their accounts: Brevo

Brevo Agency Program has a free agency partner program with centralized multi-account management. You can switch among client accounts from your dashboard and manage their accounts without making yourself the owner. www.brevo.com

The nice part for a freelancer is that Brevo also has an agency referral/commission structure, currently ranging from 10% to 25% of client recurring revenue depending on partner tier. www.brevo.com

I'd seriously consider this model if your clients are price-sensitive and you're charging them separately for management.

When I'd use HighLevel

HighLevel is the strongest choice if by "white-label" you mean:

"I want my client to log into something that looks like my own marketing platform."

The $297/mo Unlimited plan gives you unlimited subaccounts and white-label desktop access. The $497/mo Agency Pro adds SaaS Mode, allowing you to actually resell the platform under your own branding and pricing. help.gohighlevel.com

But for a freelancer with only a handful of small email clients, $297–497/month is hard to justify unless you're also using its CRM, funnels, SMS, calendars, reputation management, etc.

What I'd do in your shoes

1–3 clients:
→ MailerLite or Brevo. Keep each client's account separate and have the client pay the software bill.

3–10 clients:
→ EmailSendX is probably the most compelling low-cost agency setup, particularly if you want actual workspace separation + white-labeling.

10–25+ clients:
→ EmailSendX remains interesting at $83/mo for 25 workspaces, or move to HighLevel if you're turning email management into a broader agency product. emailsendx.com

If you're trying to sell "email marketing as a service" under your own brand:
→ EmailSendX for a lean operation; HighLevel if you want a full-fledged white-labeled client portal/SaaS business.

One important distinction: "white-label" and "manage multiple client accounts" aren't the same thing. For a freelancer, I would actually favor client-owned accounts + centralized access unless you're deliberately trying to resell the software. It keeps client data, billing, and account ownership clean when someone stops working with you.

If you're a freelance marketer with several small clients, I’d separate “multi-client management” from true white-labeling. The cheapest good options aren't necessarily the same.

My shortlist

1. Best overall for a solo freelancer: MailerLite

This is probably where I'd start. MailerLite specifically supports agencies: you can manage separate client accounts from one login, with each client's subscribers, campaigns, automations and templates kept separate. Its Advanced plan also supports unlimited user seats and granular permissions. www.mailerlite.comspreeflo.com

The catch: it isn't true white-label software. MailerLite explicitly says it doesn't offer a white-label/reseller version. www.mailerlite.comspreeflo.com

That makes it excellent if your model is:

“I manage your MailerLite account for you.”

rather than:

“Here's my own branded email-marketing platform.”

2. Cheapest if you have lots of tiny lists: Spreeflo

Spreeflo is interesting because it charges based on total contacts across all clients rather than per client. Its current agency pricing shows 5 clients/5,000 contacts at $30/mo, 10 clients/15,000 contacts at $53/mo, and 20 clients/50,000 contacts at $160/mo. spreeflo.com

That's potentially very attractive if you have, say, 10 clients with 500–1,500 subscribers each.

But it currently says white-label options are on its roadmap, so I wouldn't choose it if white-labeling is a requirement. spreeflo.com

3. If you genuinely need white-label: HighLevel

HighLevel is the serious agency option. The current $297/month Unlimited plan gives you unlimited subaccounts plus a branded desktop app/custom domain. help.gohighlevel.com

That's substantially more expensive than MailerLite, though, so it only makes financial sense if you're managing enough clients to spread the $297 across them.

For example:

• 3 clients → $99/client
• 10 clients → $29.70/client
• 20 clients → $14.85/client
• 30 clients → $9.90/client

HighLevel also supports email rebilling, so you can potentially pass email costs through to clients. help.gohighlevel.com

What I'd do in your position

If you have 2–10 small clients: go with MailerLite and have each client maintain their own account/billing. Charge your clients separately for your management service. It's cheap, clean, and you don't need to pay $297/month just to get white-labeling.

If you have 10–30+ clients with relatively small lists: investigate Spreeflo first because its contact-based agency pricing can be dramatically cheaper than paying for separate accounts.

If you're trying to build an actual branded “email marketing platform” business: HighLevel is the much better fit. At that point you're not merely freelancing—you can effectively package the software as part of your service.

One other distinction: if by white-label you mean “clients shouldn't see Mailchimp/MailerLite branding in the emails I send for them,” that's much easier than needing a completely white-labeled client portal. In that case, I'd broaden the shortlist considerably.

If you tell me roughly how many clients you have + average subscribers per client + whether you need clients to log in themselves, I can narrow this to the 2–3 cheapest setups and calculate your monthly cost.

Yes. For a freelance marketer, I’d separate “manage many client accounts cheaply” from “true white-label/reseller.” They lead to different choices.

My pick: MailerLite

For a solo freelancer with, say, 5–20 small-business clients, MailerLite is probably the sweet spot.

Its agency setup lets you use one login to switch between completely separate client accounts, with each client's subscribers, campaigns, automations, templates and billing kept separate. It explicitly says there are no per-seat fees, shared dashboards, or white-label upcharges. www.mailerlite.com

The catch: it isn't actually white-label. MailerLite says it does not offer a white-label/reseller version of its app. www.mailerlite.com

That's not necessarily a problem if you do the marketing and clients don't need to log into a branded platform.

If white-label is important: MailerSend

MailerSend is particularly interesting for agencies. You can put multiple client domains/senders into one agency account while keeping client activity separated. Its Professional plan supports unlimited users, domains and sender identities. www.mailersend.com

More importantly, MailerSend explicitly supports building your own white-label client dashboard through its API, so clients can interact with your branded interface rather than MailerSend's. www.mailersend.com

The downside is that the inexpensive plans aren't really designed around a polished white-label agency experience; the higher-end Professional plan is aimed at agencies/white-label resellers and is substantially more expensive. www.mailersend.com

HighLevel if you're selling a bigger package

HighLevel makes more sense if you're not merely sending newsletters but selling clients a marketing system—CRM, funnels, automations, SMS, email, appointment booking, etc.

It has agency sub-accounts and genuine white-label capabilities, but I'd consider it overkill for a freelancer who primarily needs email marketing. Current HighLevel documentation also shows various per-sub-account/add-on costs, so the economics become different from simply having inexpensive email accounts. help.gohighlevel.com

The inexpensive setup I'd use

If I were running a freelance marketing business, I'd probably do:

MailerLite → one agency login → separate account for every client → client owns their account/billing → I get access as the manager.

That gives you clean separation without paying for a giant agency platform. MailerLite's current pricing starts at $12/month for Comfort and $25/month for Power at the 500-subscriber level, while free accounts are available for very small lists. www.mailerlite.com

If you need the client-facing software itself to carry your agency's branding, I'd move toward MailerSend + your own lightweight dashboard or HighLevel.

Bottom line:

• 🥇 Cheapest/easiest freelancer setup: MailerLite
• 🥈 Best if actual white-labeling matters: MailerSend
• 🥉 Best all-in-one agency platform: HighLevel
• Best if you want email + SMS cheaply: Brevo

If you tell me roughly how many clients you have and the typical subscriber count per client (e.g. 10 clients × 2,000 contacts), I can work out which option would actually be cheapest per month.

Yes. For a freelance marketer with several small-business clients, I’d separate the options into “cheap multi-account management” and “true white-label/reseller.”

My shortlist

1. MailerLite — probably your best value

MailerLite is particularly well suited to your situation. Its agency setup lets you use one login to switch between separate client accounts, with each client retaining its own subscribers, campaigns, automations and templates. www.mailerlite.com

The downside is important: MailerLite does not offer true white-label/reseller software. www.mailerlite.com

Pricing currently starts at $12/month for the Comfort plan and $25/month for Power, although each client's account is billed separately. www.mailerlite.com

MailerLite agency information

I'd choose this if: your clients are happy knowing they're using MailerLite and you're charging them separately for management.

2. Brevo — strong alternative

Brevo has an explicit Agency Partner program with centralized multi-account management. You can switch between client accounts from your agency dashboard, and the program includes revenue sharing of 10–25% depending on partner tier. www.brevo.comhelp.gohighlevel.com

It's attractive if you want clients to own their accounts while you retain centralized access. Brevo also supports removing its branding, although that's different from completely white-labeling the platform. help.brevo.com

Brevo Agency Program

I'd choose this if: you want a more formal agency/partner relationship and potentially want commissions from client accounts.

3. HighLevel — best actual white-label option, but much more expensive

HighLevel is the interesting one if by "white-label" you mean:

"I want my clients to think this is my own marketing platform."

Its $297/month Freelancer plan provides unlimited sub-accounts and white-label desktop, while the $497/month Pro plan adds more agency/SaaS functionality. help.gohighlevel.com

It also lets you rebill email costs to clients on the higher agency plans, so you can build the software cost into your monthly client fee. help.gohighlevel.com

The catch is that $297/month is a lot if you only have 2–5 small clients.

HighLevel official site

What I'd do in your shoes

If you're managing 3–10 small clients, I'd start with MailerLite or Brevo, have each client maintain their own account/billing, and charge them your monthly management fee.

For example:

Client pays $150/mo

• $20–30 → email software
• $120–130 → your management/service fee

That keeps your software overhead extremely low and avoids you becoming responsible for everyone's email-sending bill.

Once you have enough clients that you're effectively selling a "marketing platform + service" rather than just managing campaigns, HighLevel becomes much more interesting because the unlimited sub-accounts and white-labeling can let you consolidate everything under your agency brand.

Bottom line:
🥇 MailerLite = best cheap freelancer solution
🥈 Brevo = best agency-partner alternative
🥉 HighLevel = best true white-label solution, but only economical once you have enough clients to justify $297+/month

If you tell me roughly how many clients you have (e.g. 5, 10, 20) and their average subscriber count, I can calculate which option would actually be cheapest for you.

Yes. If you’re a freelancer handling multiple small-business clients, I’d look beyond the usual Mailchimp-style setup and prioritize multi-account management + low overhead + some form of white-labeling.

My shortlist

🥇 Best value: Brevo

Brevo is probably the first one I'd investigate for your situation.

Its Agency Partner program provides centralized multi-account management, so you can switch between clients from one dashboard rather than maintaining a pile of separate logins. It also offers revenue sharing as you bring clients onto the platform. www.brevo.com

The big advantage for a freelancer is that your software cost doesn't have to scale directly with the number of client accounts in the same way a traditional per-seat agency platform might.

I'd choose Brevo if you're mostly selling:

• Newsletter management
• Basic automations
• Lead nurturing
• Campaign creation
• Reporting
• Occasional SMS/CRM functionality

🥈 Best simple option: MailerLite

MailerLite is particularly attractive if you don't actually need clients to see a fully branded version of the software.

MailerLite explicitly supports agencies managing multiple separate client accounts from one login, with each client retaining their own subscribers, campaigns, automations and templates. www.mailerlite.com

The catch: it isn't white-label. MailerLite says agencies can't rebrand the application itself. www.mailerlite.com

Pricing starts around $12/month for its paid Comfort tier, while the Power plan starts at $25/month and adds unlimited users. www.mailerlite.com

For a freelancer with, say, 5–10 small clients, I'd seriously consider this if you're okay with clients knowing they're using MailerLite.

🥉 Best true white-label: HighLevel

HighLevel is the one I'd look at if white-labeling is actually part of what you're selling.

Current pricing is:

• $97/mo — 3 sub-accounts
• $297/mo — unlimited sub-accounts + branded desktop
• $497/mo — adds SaaS mode and more extensive rebilling capabilities www.gohighlevel.com

The $297 plan is particularly interesting: you can have unlimited client sub-accounts and a branded desktop/custom domain, effectively making HighLevel feel like your agency's own platform. www.gohighlevel.com

It also supports email rebilling, so you can potentially build the software cost into what you charge clients. help.gohighlevel.com

The downside is obvious: $297/month is a lot if you're only managing a handful of small email clients. HighLevel also includes a huge amount of CRM, funnels, SMS, pipelines, automation, etc., which may be overkill if you only need email.

What I'd do in your shoes

If you're managing 3–10 clients and primarily doing email:
→ Brevo first.

If you want the easiest/cheapest setup and don't care about white-labeling:
→ MailerLite.

If your business model is "I provide clients with my own marketing platform" and you want to charge them monthly:
→ HighLevel $297 becomes much more compelling.

There's an important distinction here: "manage multiple clients" and "white-label" are not the same thing. You can get excellent multi-client management very cheaply without actually white-labeling the software.

If you tell me roughly how many clients you have (e.g. 5, 10, 20), average subscriber count per client, and what you charge each client per month, I can calculate which platform gives you the best margin per client.