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Best Postmark Alternatives in 2026

12 platforms from transactional email software ranked against Postmark on the same published basis.

  1. 1
    Nuntly Free plan apiWeb €10/mo7.4
    Postmark vs Nuntly
  2. 3
    Twilio SendGrid Free plan api $19.95/mo7.4
    Postmark vs Twilio SendGrid
  3. 4
    Maileroo Free plan apiWeb $10/mo7.3
    Postmark vs Maileroo
  4. 5
    Resend Broadcasts Free plan apiWeb $20/mo7.3
    Postmark vs Resend Broadcasts
  5. 6
    SMTP2GO Free plan apiWeb $8.33/mo7.3
    Postmark vs SMTP2GO
  6. 7
    Hyvor Relay Free plan apiself-hostedWeb 7.2
    Postmark vs Hyvor Relay
  7. 8
    MailerSend Free plan apiiOSWeb $5.60/mo7.2
    Postmark vs MailerSend
  8. 9
    Retarus Transactional Email Free trial apiWeb 6.8
    Postmark vs Retarus Transactional Email
  9. 10
    Sendwithus apiWeb 6.6
    Postmark vs Sendwithus
  10. 11
    Mailchimp Free plan WebiOSAndroid Free5.9
    Postmark vs Mailchimp
  11. 12
    Posthawk Free plan self-hosted $20/mo5.9
    Postmark vs Posthawk
  12. 13
    Reloop Free plan self-hosted $10/mo5.9
    Postmark vs Reloop
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