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Best Postmark Alternatives in 2026

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

  1. 1
    MailerSend Free plan apiiOSWeb $5.60/mo9.1
    Postmark vs MailerSend
  2. 2
    Reloop Free plan self-hosted $10/mo8.2
    Postmark vs Reloop
  3. 4
    Maileroo Free plan apiWeb $10/mo7.9
    Postmark vs Maileroo
  4. 5
    Mailgun Free plan Web Free7.7
    Postmark vs Mailgun
  5. 6
    Twilio SendGrid Free plan api $19.95/mo7.7
    Postmark vs Twilio SendGrid
  6. 7
    Plunk Free plan Web Free7.6
    Postmark vs Plunk
  7. 8
    Netcore Email API Free plan Web Free7.6
    Postmark vs Netcore Email API
  8. 9
    Hyvor Relay Free plan apiself-hostedWeb 7.6
    Postmark vs Hyvor Relay
  9. 10
    Mailchimp Free plan WebiOSAndroid Free7.6
    Postmark vs Mailchimp
  10. 11
    Nuntly Free plan apiWeb €10/mo7.5
    Postmark vs Nuntly
  11. 12
    SMTP2GO Free plan apiWeb $8.33/mo7.4
    Postmark vs SMTP2GO
  12. 13
    Posthawk Free plan self-hosted $20/mo7.3
    Postmark vs Posthawk
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