Best Resend alternatives in 2026

Resend has a clean developer API, but marketing contacts sit on a second plan billed by contacts, and free sending stops at 100 emails a day. For teams that send both kinds of email, the best Resend alternative is Unitpost: one plan for both, unlimited contacts on paid plans, and an importer that reads a Resend key. Postmark leads on deliverability and Brevo on free volume.

Updated November 2, 2026. We make Unitpost, and it is on this list. Every score has a reason and the weights are published below, so you can re-rank it for your own needs. How we scored

#	Product	Best for	Free plan	Score
1	Unitpost	app teams sending both kinds of email	5,000 emails a month, 200 a day, no card	4.1
2	Brevo	marketers who want a full suite	300 emails a day	3.7
3	Postmark	mail that must reach the inbox	100 emails a month	3.1
4	Mailgun	high-volume senders and validation	100 emails a day on one domain	3.0
5	SendGrid	enterprises and multi-tenant platforms	None: a 60-day trial at 100 emails a day	2.8
6	MailerSend	a cheap first paid plan	500 emails a month, card required	2.7
7	Amazon SES	lowest cost at very high volume	None for SES; new AWS accounts get up to $200 in credits	2.5

Why teams look for a Resend alternative

Marketing contacts are a second plan, priced by contacts: $40 a month for 5,000.
Free sending is capped at 100 emails a day.
There is no SMS, so texts need a second provider and a second bill.

When Resend is still the better choice

You need an Elixir SDK (we ship Node, Python, Ruby, PHP, Laravel, Go, Java, Rust, and .NET)
You only ever send transactional email and want the most battle-tested option in that lane
You want the largest community and the most third-party tutorials to lean on

What moves when you leave Resend

With Unitpost's Migration Assistant and one Resend key:

Contacts: partly imports. Every contact from Resend's GET /contacts imports with first and last name. Custom contact properties are not read, and contacts already in your workspace are skipped unless you choose Update in the preview.
Unsubscribes and consent: imports. A contact Resend marks unsubscribed imports unsubscribed. Here that stops campaigns and other marketing sends; transactional sends still reach the address.
Suppressions (bounces and complaints): rebuild. Not imported. Resend now lists its suppressions at GET /suppressions, but the importer does not call it, so step 1 copies them.
Segments: imports. Each audience becomes a static segment with its members. The importer reads Resend's Audiences API, which Resend deprecated when audiences became segments, so compare the preview count with your Segments page.
Topics: partly imports. Topics are recreated with their default. Per-contact choices are not read, so a contact who opted out of an opt_in topic in Resend counts as subscribed to it here until step 3.
Templates: partly imports. Subject, HTML and text import as draft code-mode templates in the marketing category. Resend's {{{VARIABLE}}} placeholders are not converted, and the preview does not flag them for Resend.
Sending domains: partly imports. Each domain is recreated as verifying with a new DKIM key and new DNS records. Resend's open and click tracking settings carry over to the new domain.
Webhooks: partly imports. Endpoints are recreated switched off with a new signing secret. Events both products share keep their names; contact.topics.updated, suppression.*, topic.* and inbox.* are dropped and listed in the preview.
API keys: rebuild. Keys are stored hashed on both sides and cannot be read. Create new keys in Unitpost.
Scheduled broadcasts: rebuild. Broadcasts are not read. Recreate upcoming ones as campaigns on a segment.
Receiving: rebuild. Inbound settings are not read. Turn receiving on for the verified domain here and point its MX record at Unitpost.

The Resend migration plan

The picks

#1 · 4.1 / 5

Unitpost

Best for app teams sending both kinds of email

Transactional and marketing email on one API, one contact list and one bill, with a permanent free plan and an importer for six providers.

Pros

Permanent free plan, no card
Imports unsubscribes and consent, segments from Resend with one key
REST API, SMTP relay, MCP server and nine SDKs on every plan
Unlimited contacts on paid plans, priced by sends

Cons

A newer sender, without a long public track record
No sub-accounts, and dedicated IPs are not launched yet
SMS is on paid plans only

Free plan: 5,000 emails a month, 200 a day, no card
Paid from: $10 a month for 20,000 emails
Priced by: Emails sent

Start free See pricing

#2 · 3.7 / 5

Brevo

Best for marketers who want a full suite

A marketing suite with email, SMS, WhatsApp, a CRM and automation, plus a transactional API and SMTP relay. Its free plan sends the most email here.

Pros

The largest free volume: 300 emails a day
CRM, landing pages and automation built in
Paid plans sized by email volume, from $9 a month

Cons

SMS and WhatsApp credits are bought separately
A large step in price from Standard to Professional

Free plan: 300 emails a day
Paid from: $9 a month for 5,000 emails
Priced by: Emails sent

Unitpost vs Brevo Visit Brevo

#3 · 3.1 / 5

Postmark

Best for mail that must reach the inbox

Transactional email known for fast, reliable inbox placement, with bulk mail kept on separate broadcast streams. It costs more, and the free plan is for testing.

Pros

The best-regarded deliverability record here
Transactional and bulk mail kept on separate streams
45 days of message content and good debugging tools

Cons

The free plan is 100 emails a month
No audience or campaign tools, and no inbound on Basic

Free plan: 100 emails a month
Paid from: $15 a month for 10,000 emails
Priced by: Emails sent

Unitpost vs Postmark Visit Postmark

#4 · 3.0 / 5

Mailgun

Best for high-volume senders and validation

A long-running email API with address validation and inbox placement testing. Strong at volume, with marketing campaigns left to other tools.

Pros

Email validation and inbox placement testing
EU region for data residency
Proven at very high volume

Cons

The free plan keeps logs for one day, on one domain
Marketing campaigns need another tool

Free plan: 100 emails a day on one domain
Paid from: $15 a month for 10,000 emails
Priced by: Emails sent

Unitpost vs Mailgun Visit Mailgun

#5 · 2.8 / 5

SendGrid

Best for enterprises and multi-tenant platforms

The long-running email API, now part of Twilio, with Marketing Campaigns as a separate product. Strong at scale; there is no free plan any more.

Pros

Proven at very high volume
Sub-accounts for multi-tenant platforms
Dedicated IPs from the Pro plan

Cons

No free plan: a 60-day trial, then from $19.95 a month
Marketing Campaigns is a separate product and plan

Free plan: None: a 60-day trial at 100 emails a day
Paid from: $19.95 a month (Essentials)
Priced by: Sends and contacts

Unitpost vs SendGrid Visit SendGrid

#6 · 2.7 / 5

MailerSend

Best for a cheap first paid plan

A transactional email API with an official hosted MCP server and a $7 first paid plan. The free plan is small.

Pros

Hobby is $7 a month for 5,000 emails
API and SMTP on the free plan
An official hosted MCP server

Cons

500 emails a month on free
No audience or campaign tools

Free plan: 500 emails a month, card required
Paid from: $7 a month for 5,000 emails
Priced by: Emails sent

Visit MailerSend

#7 · 2.5 / 5

Amazon SES

Best for lowest cost at very high volume

Amazon's sending service, inside AWS: the lowest price per email here. You build the rest yourself, from bounce handling to templates and dashboards.

Pros

$0.10 per 1,000 emails on pay-as-you-go pricing
Runs inside your AWS account and IAM
Inbound email as well as sending

Cons

No campaign builder or audience tools
Bounce handling, dashboards and reputation work are yours

Free plan: None for SES; new AWS accounts get up to $200 in credits
Paid from: $0.10 per 1,000 emails (new accounts start on a $0.16 plan)
Priced by: Emails sent

Visit Amazon SES

Scores side by side

Product	Free plan20%	Developer experience20%	Transactional + marketing20%	Switching15%	Deliverability15%	Scale10%	Total
Unitpost	5	5	5	3	3	2	4.1
Brevo	5	3	5	2	3	3	3.7
Postmark	2	4	2	3	5	3	3.1
Mailgun	3	3	2	2	4	5	3.0
SendGrid	1	3	3	2	4	5	2.8
MailerSend	2	4	2	2	3	3	2.7
Amazon SES	2	3	1	2	3	5	2.5

How we scored

This list is for teams sending app email through Resend who are weighing a switch. What matters to them: a free or cheap way to keep sending, a modern API, marketing email in the same place, and a move that keeps suppressions.

Free plan (20%). A permanent free plan large enough to run a small app on, with no card.
Developer experience (20%). A clear REST API, current SDKs, readable errors and docs.
Transactional + marketing (20%). Both kinds of email in one product, on one contact list and one bill.
Switching (15%). An importer, or a documented path, that moves Resend contacts, suppressions and templates.
Deliverability (15%). A long public record of inbox placement, and the tooling to protect it.
Scale (10%). Proven at very high volume, with dedicated IPs and enterprise plans.

Each product gets 1 to 5 per criterion, from its own pricing and docs pages. The total is the weighted mean, so changing a weight re-ranks the list.

Why Unitpost scored 4.1

Free plan: 5/5. 5,000 emails a month free for good, 200 a day, no card.
Developer experience: 5/5. Bearer-token REST API, nine SDKs, a CLI and an MCP server, with idempotency keys on sends.
Transactional + marketing: 5/5. Campaigns, segments and topics share the contact list and the bill with API sends.
Switching: 3/5. The Migration Assistant imports unsubscribes and consent, segments from Resend with one key; the guide covers the rest.
Deliverability: 3/5. Guided SPF, DKIM and DMARC with continuous checks, but a short public record so far.
Scale: 2/5. No sub-accounts, and dedicated IPs are not launched yet.

Checked November 2, 2026 against unitpost.com/pricing, unitpost.com/sms, registry.npmjs.org/unitpost.

Why Brevo scored 3.7

Free plan: 5/5. 300 emails a day, about 9,000 a month, on a permanent free plan.
Developer experience: 3/5. A full API and SMTP relay, shaped by the marketing suite rather than built for developers first.
Transactional + marketing: 5/5. Campaigns, automation and transactional sending in one account.
Switching: 2/5. No importer or guide for Resend found; contacts move by CSV and the rest by API.
Deliverability: 3/5. An established sender, without Postmark's public time-to-inbox record.
Scale: 3/5. Professional plans from 150,000 emails; the focus is marketing teams more than high-volume APIs.

Checked November 2, 2026 against brevo.com/pricing/, developers.brevo.com/docs/mcp-protocol, help.brevo.com/hc/en-us/articles/7959631848850, help.brevo.com/hc/en-us/articles/360021533839, registry.npmjs.org/@getbrevo/brevo.

Why Postmark scored 3.1

Free plan: 2/5. 100 emails a month free, enough to test, not to run an app.
Developer experience: 4/5. A mature, well-documented API with official libraries.
Transactional + marketing: 2/5. Broadcast streams send bulk mail, but there are no audience or campaign tools.
Switching: 3/5. A published guide for moving from Resend; no importer, so data moves by CSV and API.
Deliverability: 5/5. A long public record of time-to-inbox, protected by separate streams.
Scale: 3/5. Handles large volume; dedicated IPs from 300,000 emails a month on Pro and above.

Checked November 2, 2026 against postmarkapp.com/pricing, postmarkapp.com/migration-guides, postmarkapp.com/lp/mcp, postmarkapp.com/developer/user-guide/send-email-with-smtp, registry.npmjs.org/postmark, postmarkapp.com/developer/webhooks/inbound-webhook.

Why Mailgun scored 3.0

Free plan: 3/5. A free plan of 100 emails a day on one domain, with one day of logs.
Developer experience: 3/5. A capable API on HTTP Basic auth, with a surface shaped by long history.
Transactional + marketing: 2/5. Built for transactional sending; marketing campaigns need another product.
Switching: 2/5. No importer or guide for Resend found; contacts move by CSV and the rest by API.
Deliverability: 4/5. Validation, inbox placement tests and dedicated IPs.
Scale: 5/5. Built for very high volume, with dedicated IP pools and enterprise plans.

Checked November 2, 2026 against mailgun.com/pricing/, mailgun.com/resources/guides/migrating-from-sendgrid-to-mailgun-email-api/, documentation.mailgun.com/docs/mailgun/mcp, documentation.mailgun.com/docs/mailgun/user-manual/sending-messages/send-smtp, registry.npmjs.org/mailgun.js, documentation.mailgun.com/docs/mailgun/user-manual/receive-forward-store/receive-http.

Why SendGrid scored 2.8

Free plan: 1/5. No free plan: a 60-day trial at 100 emails a day, then from $19.95 a month.
Developer experience: 3/5. A large API with SDKs, shaped by a decade of backwards compatibility.
Transactional + marketing: 3/5. Marketing Campaigns is a separate product with its own plans.
Switching: 2/5. No importer or guide for Resend found; contacts move by CSV and the rest by API.
Deliverability: 4/5. A long track record, with dedicated IPs from the Pro plan.
Scale: 5/5. Proven at very high volume, with sub-accounts and enterprise support.

Checked November 2, 2026 against twilio.com/en-us/products/email-api/pricing, twilio.com/docs/sendgrid/for-developers/sending-email/integrating-with-the-smtp-api, twilio.com/docs/sendgrid/ui/analytics-and-reporting/email-activity-feed, registry.npmjs.org/@sendgrid/mail, twilio.com/docs/sendgrid/for-developers/parsing-email/inbound-email.

Why MailerSend scored 2.7

Free plan: 2/5. 500 emails a month on one domain.
Developer experience: 4/5. A modern REST API, SMTP and an official MCP server.
Transactional + marketing: 2/5. Built for transactional email; bulk sending comes on paid plans, without audience tools.
Switching: 2/5. No importer or guide for Resend found; contacts move by CSV and the rest by API.
Deliverability: 3/5. An established sender, without a long public inbox-placement record.
Scale: 3/5. Plans for growing volume; fewer enterprise tools than the incumbents.

Checked November 2, 2026 against mailersend.com/pricing, developers.mailersend.com/mcp, mailersend.com/help/smtp-relay, mailersend.com/features/inbound-emails, developers.mailersend.com/api/v1/webhooks.html, registry.npmjs.org/mailersend, developers.mailersend.com/api/v1/inbound.

Why Amazon SES scored 2.5

Free plan: 2/5. No SES free tier; new AWS accounts get up to $200 in credits.
Developer experience: 3/5. AWS SDKs and IAM: powerful, with more setup than an email API.
Transactional + marketing: 1/5. A sending service; it has no campaign builder.
Switching: 2/5. No importer or guide for Resend found; contacts move by CSV and the rest by API.
Deliverability: 3/5. Good infrastructure, but reputation monitoring is your job.
Scale: 5/5. AWS-scale throughput and dedicated IPs.

Checked November 2, 2026 against aws.amazon.com/ses/pricing/, docs.aws.amazon.com/ses/latest/dg/smtp-connect.html, docs.aws.amazon.com/ses/latest/dg/smtp-credentials.html, docs.aws.amazon.com/ses/latest/dg/vdm-dashboard.html, registry.npmjs.org/@aws-sdk/client-sesv2, docs.aws.amazon.com/ses/latest/dg/receiving-email-notifications-contents.html.

Frequently asked questions

Does Resend have a free plan?

Yes: 3,000 emails a month, capped at 100 a day, plus 1,000 marketing contacts. Unitpost's free plan is 5,000 emails a month at 200 a day, with campaigns and inbound included.

How do I move off Resend?

Copy suppressions first, so nobody who bounced or complained gets mail from the new provider. Unitpost's Migration Assistant imports unsubscribes and consent, segments with one Resend key, and the migration plan lists what you rebuild by hand.

Go deeper: Unitpost vs Resend · Migrate from Resend · Best free email APIs

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