Best Postmark Alternatives in 2026
Updated
20 tools from transactional email software ranked against Postmark on the same published basis.
- 1Postmark vs turboSMTP
- 2Postmark vs Twilio Segment
- 4Postmark vs Mailchimp
- 5Postmark vs MailerSend
- 6Postmark vs Twilio SendGrid
- 7Postmark vs Nuntly
- 8Postmark vs Maileroo
- 9Postmark vs Hyvor Relay
- 10Postmark vs Mailchimp Transactional (formerly Mandrill)
- 11Postmark vs Posthawk
- 12Postmark vs Reloop
- 13Postmark vs Resend Broadcasts
- 14Postmark vs Mailmark
- 15Postmark vs Retarus Transactional Email
- 16Postmark vs SMTP2GO
- 17Postmark vs SocketLabs
- 18Postmark vs EmailSuccess
- 19Postmark vs Mailgun
- 20Postmark vs Netcore Email API
- 21Postmark vs ReachMail
Postmark alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | turboSMTP | 7.8 | Free plan | €14.95/mo | Android, API, iOS, Web |
| 2 | Twilio Segment | 7.5 | Free plan | $120/mo | Web, iOS, Android |
| 4 | Mailchimp | 7.2 | Free plan | Free | Web, iOS, Android |
| 5 | MailerSend | 7.2 | Free plan | $5.60/mo | API, iOS, Web |
| 6 | Twilio SendGrid | 7.2 | Free plan | $19.95/mo | API |
| 7 | Nuntly | 7.1 | Free plan | €10/mo | API, Web |
| 8 | Maileroo | 6.9 | Free plan | $10/mo | API, Web |
| 9 | Hyvor Relay | 6.8 | Free plan | — | API, self-hosted, Web |
| 10 | Mailchimp Transactional (formerly Mandrill) | 6.8 | No | $10/mo | Web |
| 11 | Posthawk | 6.8 | Free plan | $20/mo | self-hosted |
| 12 | Reloop | 6.8 | Free plan | $10/mo | self-hosted |
| 13 | Resend Broadcasts | 6.8 | Free plan | $20/mo | API, Web |
| 14 | Mailmark | 6.7 | No | $10/mo | API, self-hosted, Web |
| 15 | Retarus Transactional Email | 6.7 | No | — | API, Web |
| 16 | SMTP2GO | 6.7 | Free plan | $8.33/mo | API, Web |
| 17 | SocketLabs | 6.6 | No | $39.95/mo | API, self-hosted, Web |
| 18 | EmailSuccess | 6.5 | Free plan | Free | Web |
| 19 | Mailgun | 6.5 | Free plan | Free | Web |
| 20 | Netcore Email API | 6.5 | Free plan | Free | Web |
| 21 | ReachMail | 6.5 | Free plan | $8/mo | Web |
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Questions about Postmark alternatives
What is the best alternative to Postmark?
turboSMTP, number 1 in transactional email software with a score of 7.8 out of 10. The others here: Twilio Segment, Mailchimp, MailerSend and 16 more.
What is the best free alternative to Postmark?
turboSMTP is the best-ranked alternative with a free plan. 16 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.