Best Transactional Email · alternatives
Best Mailgun alternatives (2026)
7 alternatives to Mailgun in transactional email, ranked by entry price. Mailgun starts at $0/mo. Every figure links to the vendor's own page and the date we captured it.
Key takeaways
- Free alternatives: MailerSend, Mailtrap, Postmark, Resend, SMTP2GO, Twilio SendGrid.
- Closest by price: MailerSend ($0/mo), Mailtrap ($0/mo), Postmark ($0/mo).
Mailgun alternatives compared
| # | Alternative | Entry price | Free | HIPAA | Best for | Source |
|---|---|---|---|---|---|---|
| 1 | MailerSend | $0/mo | Yes | — | SaaS teams needing both transactional email and SMS from one API | mailersend.com |
| 2 | Mailtrap | $0/mo | Yes | — | Development teams that want email testing (sandbox) and sending from one vendor | mailtrap.io |
| 3 | Postmark | $0/mo | Yes | — | Teams where transactional deliverability is non-negotiable | postmarkapp.com |
| 4 | Resend | $0/mo | Yes | — | Developer-first teams using React/Next.js | resend.com |
| 5 | SMTP2GO | $0/mo | Yes | — | Small businesses and developers wanting simple SMTP relay setup | smtp2go.com |
| 6 | Twilio SendGrid | $0/mo | No | No | High-volume senders needing SOC 2 attestation at scale | twilio.com |
| 7 | Amazon SES | $24.95/mo | No | Yes | AWS-native applications needing lowest per-email cost at scale | aws.amazon.com |
Data current through 2026-06-13. Compare any two directly on the Transactional Email index.