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Best Retarus Transactional Email Alternatives in 2026

12 apps from transactional email software ranked against Retarus Transactional Email on the same published basis.

  1. 1
    Mailchimp Free plan WebiOSAndroid Free7.0
    Retarus Transactional Email vs Mailchimp
  2. 2
    Nuntly Free plan apiWeb €10/mo7.0
    Retarus Transactional Email vs Nuntly
  3. 3
    Postmark Free plan apiWeb $5/mo7.0
    Retarus Transactional Email vs Postmark
  4. 4
    Twilio Segment Free plan WebiOSAndroid $120/mo7.0
    Retarus Transactional Email vs Twilio Segment
  5. 5
    Maileroo Free plan apiWeb $10/mo6.8
    Retarus Transactional Email vs Maileroo
  6. 6
    MailerSend Free plan apiiOSWeb $5.60/mo6.8
    Retarus Transactional Email vs MailerSend
  7. 7
    Reloop Free plan self-hosted $10/mo6.8
    Retarus Transactional Email vs Reloop
  8. 8
    Resend Broadcasts Free plan apiWeb $20/mo6.8
    Retarus Transactional Email vs Resend Broadcasts
  9. 9
    SMTP2GO Free plan apiWeb $8.33/mo6.8
    Retarus Transactional Email vs SMTP2GO
  10. 10
    Twilio SendGrid Free plan api $19.95/mo6.8
    Retarus Transactional Email vs Twilio SendGrid
  11. 11
    Hyvor Relay Free plan apiself-hostedWeb 6.7
    Retarus Transactional Email vs Hyvor Relay
  12. 12
    Posthawk Free plan self-hosted $20/mo6.7
    Retarus Transactional Email vs Posthawk
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