Best MailerSend Alternatives in 2026: 7 Tools Compared

The best MailerSend alternatives are Lumail, Resend, Postmark, Mailgun, SMTP2GO, Mailjet, and Brevo, depending on whether you only need a transactional pipe or want newsletters and automations in the same account. MailerSend is a capable transactional API, and its $7 Hobby plan is cheap for small senders. Teams usually outgrow it for one of two reasons: overage adds up, or marketing email has to live in a second product.

We make Lumail, so it is listed first; every other entry is judged on the same criteria with facts from each vendor's pricing page as of August 2026.

Why people look for a MailerSend alternative

• The free plan is tight. It is 500 emails/month after account approval, with a credit card required. It allows one domain, one template, and 100 API or SMTP requests a day, and sending pauses at the cap instead of billing overage.
• Overage climbs quickly on Hobby. Hobby is $7/month for 5,000 emails, then $1.50 per 1,000. The next plan, Starter, starts at $35/month for 50,000.
• Newsletters live somewhere else. MailerSend's own help sends newsletters, promotions, and marketing campaigns to MailerLite and advises against using its SMTP relay for regular marketing mail. That means two products and two bills.
• No journey builder. Sequences are API calls, SMTP sends, bulk requests, or scheduled messages, not a visual workflow.

MailerSend alternatives at a glance

Workflow graph

1. Lumail: best for transactional email and newsletters in one account

Lumail replaces the MailerSend plus MailerLite pair with one organization. Transactional mail goes through the REST API or smtp.lumail.io:587 with STARTTLS, the same connection style as MailerSend's SMTP relay. Newsletters, capture pages, and graph workflows (triggers, waits, conditions, branches, goals, exit rules, A/B paths, webhooks) sit in the same account, sharing one domain setup and one suppression state. Agents can run all of it through 89 organization-scoped MCP tools in ChatGPT, Claude, Claude Code, Cursor, and Codex, plus a CLI, TypeScript SDK, and REST API.

Pricing: Free is 3,000 emails/month with no credit card. Premium is $20/month with 40,000 emails included, then $0.60 per 1,000. Business is $200/month with 400,000 included, then $0.40 per 1,000. Subscribers are unlimited on every plan.

Choose it if:

• You send app email and newsletters and do not want a MailerSend and MailerLite split
• You want lifecycle sequences as visual workflows instead of scheduled API calls
• You want a free plan without a credit card and six times MailerSend's free volume

Watch out for:

• No SMS, which MailerSend offers in the US and Canada
• No inbound email routing, which MailerSend includes

See Lumail vs MailerSend side by side.

2. Resend: best for developer-first transactional sending

Resend is developer email infrastructure with a strong SDK ecosystem, including React Email for building templates in code. It covers transactional sending over REST API and SMTP, inbound email, webhooks, deliverability tooling, and a marketing side with broadcasts, contacts, and automations.

Pricing: Free is 3,000 transactional emails or 1,000 marketing contacts. Paid starts at $20/month for transactional and $40/month for marketing.

Choose it if:

• Your templates live in your repository, not a visual builder
• Resend's SDKs and React Email fit your stack
• You want six times MailerSend's free volume for transactional mail

Watch out for:

• Marketing email is a separate plan priced by contacts, so the two-bill problem remains
• Its free tier is 3,000 transactional emails or 1,000 marketing contacts, not both

See the full Lumail vs Resend comparison.

3. Postmark: best for deliverability-first transactional email

Postmark focuses on getting application email delivered. Transactional and broadcast traffic run on separate Message Streams, so a newsletter blast never touches your password-reset reputation. It offers REST API and SMTP, templates, webhooks, 45 days of full content history, inbound parsing to JSON on Pro and Platform, and an official local MCP server with 24 tools.

Pricing: The free Developer plan is 100 emails/month. Basic is $15/month for 10,000 emails, then $1.80 per 1,000. Pro is $16.50 ($1.30 per 1,000 extra) and Platform is $18 ($1.20 per 1,000 extra).

Choose it if:

• Inbox placement for receipts and resets matters more than anything else
• You want transactional and broadcast reputations kept apart
• You keep lists and sequences in your own application

Watch out for:

• No journey builder, list uploads, or campaign reporting
• The free plan is only 100 emails/month, and there is no paid tier below 10,000

See the full Lumail vs Postmark comparison.

4. Mailgun: best for inbound routing and EU data residency

Mailgun, part of Sinch, is a sending and receiving service for application email. It has US and EU regions, inbound routes, email validation, webhooks, and dedicated IPs at $59 per IP per month. Its official local MCP server documents 50+ operations.

Pricing: Free Send includes 100 emails/day. Basic starts at $15/month for 10,000 emails with extras from $1.80 per 1,000. Foundation is $35/month for 50,000, and Scale is $90/month for 100,000.

Choose it if:

• You need EU region endpoints or inbound parsing
• You want validation and dedicated IP pools from one vendor
• You send high volume from application code

Watch out for:

• No visual journey builder or hosted newsletter tooling
• Optimize and Inspect are separate products with separate bills

See the full Lumail vs Mailgun comparison.

5. SMTP2GO: best for an SMTP relay with human support

SMTP2GO is a volume-priced SMTP relay and REST API for transactional and bulk sending. It stands out for support: phone, live chat, and tickets on paid plans. It also offers subaccounts for agencies and MSPs, a 100% delivery SLA on paid plans, optional SMS, and a remote MCP server that can execute its API.

Pricing: Free is 1,000 emails/month, capped at 200 a day. Paid starts at $15/month for 10,000 emails, then $1.20 per 1,000. The 50,000 plan is $30/month, and the 100,000 plan is $75/month with a dedicated IP included.

Choose it if:

• You want to call a person when mail stops flowing
• You manage sending for several clients through subaccounts
• You only need a sending pipe for an existing app or device

Watch out for:

• No campaign builder, subscriber CRM, or automation; support points to other tools for lists
• Paid overage stops at three times the plan cap

See the full Lumail vs SMTP2GO comparison.

6. Mailjet: best for a marketing editor and transactional email in one EU ESP

Mailjet, also part of Sinch, combines a collaborative drag-and-drop campaign editor with transactional sending over its Send API and SMTP relay, from EU data centers. Unlike MailerSend, marketing and transactional email share one account and one volume plan.

Pricing: Free is 6,000 emails/month with a 200-a-day cap and 1,000 contacts. Starter is $9/month for 8,000 emails and 2,000 contacts. Essential starts at $17/month for 15,000 emails with unlimited contacts. Automations need Premium, from $27/month.

Choose it if:

• You want newsletters and transactional email in one EU-hosted account
• Marketers and developers need to share templates
• You need MJML and real-time editor collaboration

Watch out for:

• Visual automations are only on Premium 15k and higher
• Its MCP server is read-only; it cannot send email or change settings

See the full Lumail vs Mailjet comparison.

7. Brevo: best for email plus SMS, WhatsApp, and CRM

Brevo is a multichannel marketing and CRM suite. Marketing and transactional email are included in the platform alongside SMS, WhatsApp, contact management, and sales tools. It suits teams that want MailerSend's transactional role and MailerLite's marketing role, plus other channels, from one vendor.

Pricing: Free is 300 emails/day. Starter starts at $9/month and Standard at $18/month, priced by plan and monthly email volume.

Choose it if:

• SMS, WhatsApp, or CRM are required channels
• You want marketing and transactional email in one account
• A daily free allowance fits your sending pattern

Watch out for:

• Multi-step workflows start on Standard, not Starter or Free
• The free plan's daily cap limits bursty sends like launches

See the full Lumail vs Brevo comparison.

How to choose a MailerSend alternative

• Decide if you need a pipe or a platform. Postmark, Mailgun, and SMTP2GO replace MailerSend's transactional role directly. Lumail, Mailjet, and Brevo also replace MailerLite's marketing role.
• Price your real monthly volume. Entry prices are close ($7 to $20), but overage rates differ a lot, from $0.60 per 1,000 on Lumail Premium to $2.58 on Mailjet's 15k plans.
• Check free-plan terms. Lumail, SMTP2GO, and Mailjet need no credit card; MailerSend requires one. Mailjet, Brevo, and SMTP2GO add daily caps.
• Check SMS and inbound needs. If you rely on MailerSend's SMS or inbound routing, confirm the alternative covers them before moving.
• Check agent access. Lumail's MCP covers campaigns, workflows, subscribers, and transactional email. MailerSend's hosted MCP is larger but scoped to transactional operations.

Worked example: 20,000 emails a month. Say your app sends 12,000 transactional emails and you add a monthly update to 8,000 users.

On MailerSend, the monthly update would also need MailerLite, since MailerSend points newsletters there.

How to migrate from MailerSend

1. Export recipients and suppressions. Include hard bounces, spam complaints, and unsubscribes so they stay blocked after the move.
2. Authenticate the domain with the new provider. Add SPF and DKIM, then keep MailerSend live until the domain verifies.
3. Swap API or SMTP credentials. Replace smtp.mailersend.net with the new relay (Lumail's settings are in the SMTP guide) or update your API client, and send a test for every template.
4. Rebuild scheduled sends as workflows. If you chained scheduled API calls for onboarding, recreate them as one workflow and run a test user through it.
5. Move the newsletter last. If your list lives in MailerLite, import it separately, send one campaign to a small segment, then switch the rest.

Frequently asked questions

What is the best MailerSend alternative?

For transactional email alone, Postmark, Mailgun, SMTP2GO, and Resend are the closest replacements. If you also send newsletters, Lumail is the strongest fit because both streams share one account and one $20 plan with 40,000 emails.

What is similar to MailerSend but also sends newsletters?

Lumail, Mailjet, and Brevo all send transactional email over API and SMTP and also run marketing campaigns from the same account. Lumail includes graph workflows on every plan; Mailjet gates automations to Premium, and Brevo to Standard.

Does MailerSend have a free plan?

Yes. It includes 500 emails/month after account approval and requires a credit card, though it is not charged. It is limited to one domain, one template, and 100 daily API or SMTP requests, and sending pauses when you hit the cap.

How much does MailerSend cost?

Hobby is $7/month for 5,000 emails, then $1.50 per 1,000. Starter starts at $35/month and Professional at $110/month for 50,000 emails, with $1.30 per 1,000 extra. Yearly billing is 10% off.

What is the cheapest MailerSend alternative?

It depends on volume. At 20,000 emails a month, Lumail Premium is $20 against $29.50 on MailerSend Hobby. At very low volume, SMTP2GO's free 1,000 emails and Lumail's free 3,000 emails beat MailerSend's 500.

Pick the pipe or the platform

If app email is all you send, the transactional specialists among these MailerSend alternatives, like Postmark or SMTP2GO, are a clean swap. If you want transactional mail and newsletters in one place, start Lumail free with 3,000 emails per month and no credit card, or browse the email platform comparison hub to compare more tools.