Mailgun vs Postmark
A detailed comparison to help you choose the right email apis solution for your project.
Quick Verdict
Mailgun has a feature edge based on documented capabilities, but the best choice depends on your constraints. Mailgun is best for inbound email processing, while Postmark excels at critical transactional email. See methodology for how we compare tools.
Mailgun
Feature edgePowerful email APIs
Best for
Postmark
Transactional email that delivers
Best for
Feature Comparison
| Feature | Mailgun | Postmark |
|---|---|---|
| REST API | Yes | Yes |
| SMTP | Yes | Yes |
| Inbound email | Yes | No |
| Webhooks | Yes | Yes |
| Analytics | Yes | Yes |
| Dedicated IPs | Yes | Yes |
| Email validation | Yes | No |
| Marketing campaigns | No | No |
| Email templates | No | Yes |
Pricing Comparison
Mailgun
Postmark
Mailgun Pros & Cons
Pros
- +Powerful email validation
- +Inbound email routing
- +Good deliverability
- +Flexible APIs
Cons
- -Trial expires after 3 months
- -Interface feels dated
- -Pricing can be confusing
Postmark Pros & Cons
Pros
- +Fastest delivery times
- +Excellent deliverability
- +Clean, focused product
- +Great support
Cons
- -No free tier
- -Transactional only
- -Higher cost per email
Mailgun Verdict
Mailgun is powerful for advanced use cases like inbound processing and validation. Overkill for simple transactional email.
Postmark Verdict
Postmark is the best for critical transactional emails where speed and deliverability matter most. No marketing bloat.
More options in Email APIs
Looking for different tradeoffs? Explore alternatives to each tool.
Related guides
Frequently Asked Questions: Mailgun vs Postmark
Is Mailgun or Postmark better?
It depends on your use case. Mailgun is best for inbound email processing and email validation needs. Postmark is best for critical transactional email and password resets. Mailgun is powerful for advanced use cases like inbound processing and validation. Overkill for simple transactional email.
Is Mailgun free?
Yes, Mailgun offers a free tier. Paid plans start at $35/mo.
Is Postmark free?
No, Postmark does not have a free tier. Pricing starts at $15/mo.
Can I migrate from Mailgun to Postmark?
Yes, you can migrate from Mailgun to Postmark, though the complexity depends on how deeply integrated your current solution is. Most developers recommend evaluating both tools in a test environment before committing to a migration.
Which is more popular, Mailgun or Postmark?
Both Mailgun and Postmark are popular choices in their category. The best choice depends on your specific requirements, team expertise, and budget rather than popularity alone.