Best Amazon SES alternatives in 2026
Amazon SES has the lowest price per email at volume, but each region starts in a sandbox, events go through SNS or EventBridge rather than webhooks, and sends take no idempotency key. For apps that want email working out of the box, the best SES alternative is Unitpost: a 5,000-email free plan, signed webhooks, idempotent sends and campaigns. Postmark leads on deliverability.
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 | Score |
|---|---|---|---|
| 1 | Unitpost | app teams sending both kinds of email | 4.0 |
| 2 | Brevo | marketers who want a full suite | 3.7 |
| 3 | Resend | developer-first transactional email | 3.5 |
| 4 | Postmark | mail that must reach the inbox | 3.0 |
| 5 | Mailgun | high-volume senders and validation | 3.0 |
| 6 | SendGrid | enterprises and multi-tenant platforms | 2.8 |
| 7 | MailerSend | a cheap first paid plan | 2.7 |
Why teams look for a Amazon SES alternative
- Each region starts in a sandbox: verified recipients only, 200 messages a day.
- Delivery events go to SNS, EventBridge or Firehose, not to a webhook URL.
- SendEmail takes no idempotency key, and there's no campaign builder.
When Amazon SES is still the better choice
- You already run on AWS, with IAM and its event services
- You send very high volume and the price per email matters most
- You need multi-region sending or compliance archiving
Moving your email off Amazon SES
- There is no one-key importer for Amazon SES: export your contacts and suppressions, import them, verify your sending domain, and move one kind of mail at a time
- Replace the SES event destinations with webhook subscriptions, and copy your account-level suppression list across before the first send
The picks
#1 · 4.0 / 5
Unitpost
Best for app teams sending both kinds of emailTransactional 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
- One-key import from SendGrid, Resend, Mailgun, Postmark, Brevo and Loops
- 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
#2 · 3.7 / 5
Brevo
Best for marketers who want a full suiteA 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
#3 · 3.5 / 5
Resend
Best for developer-first transactional emailA clean, modern email API from the team behind React Email, with inbound email and an official MCP server on every plan. Marketing contacts are billed on a separate plan.
Pros
- A modern API with clear errors and many SDKs
- Inbound email on every plan, free included
- React Email for building templates in code
Cons
- Marketing is a second plan, priced by contacts ($40 a month for 5,000)
- Free sending is capped at 100 emails a day
- Free plan
- 3,000 emails a month, 100 a day
- Paid from
- $20 a month for 50,000 emails
- Priced by
- Sends and contacts
#4 · 3.0 / 5
Postmark
Best for mail that must reach the inboxTransactional 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
#5 · 3.0 / 5
Mailgun
Best for high-volume senders and validationA 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
#6 · 2.8 / 5
SendGrid
Best for enterprises and multi-tenant platformsThe 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
#7 · 2.7 / 5
MailerSend
Best for a cheap first paid planA 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
Scores side by side
| Product | Free plan20% | Developer experience20% | Transactional + marketing20% | Switching15% | Deliverability15% | Scale10% | Total |
|---|---|---|---|---|---|---|---|
| Unitpost | 5 | 5 | 5 | 2 | 3 | 2 | 4.0 |
| Brevo | 5 | 3 | 5 | 2 | 3 | 3 | 3.7 |
| Resend | 4 | 5 | 3 | 2 | 3 | 3 | 3.5 |
| Postmark | 2 | 4 | 2 | 2 | 5 | 3 | 3.0 |
| 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 |
How we scored
This list is for teams sending app email through Amazon SES 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 Amazon SES 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 4.0
- 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: 2/5. No importer or guide for Amazon SES found; contacts move by CSV and the rest by API.
- 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 Amazon SES 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 Resend scored 3.5
- Free plan: 4/5. 3,000 emails a month free, capped at 100 a day.
- Developer experience: 5/5. The API many newer providers copy, with SDKs across most languages.
- Transactional + marketing: 3/5. Broadcasts exist, but marketing contacts sit on a second plan and bill.
- Switching: 2/5. No importer or guide for Amazon SES found; contacts move by CSV and the rest by API.
- Deliverability: 3/5. A shorter public record than SendGrid or Postmark.
- Scale: 3/5. Higher-volume plans above Pro; less proven at the very largest volumes.
Checked November 2, 2026 against resend.com/pricing, resend.com/migrate, resend.com/docs/dashboard/receiving/introduction, github.com/resend/mcp-send-email, resend.com/docs/send-with-smtp, resend.com/docs/api-reference/api-keys/create-api-key, registry.npmjs.org/resend, resend.com/docs/dashboard/webhooks/retries-and-replays.
Why Postmark scored 3.0
- 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: 2/5. No importer or guide for Amazon SES found; contacts move by CSV and the rest by 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 Amazon SES 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 Amazon SES 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 Amazon SES 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.
Frequently asked questions
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