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Postmark vs Resend
Comparing two transactional email platforms on pricing, features, free tier, and trade-offs.
Quick summary
Postmark — Fast, reliable email delivery. Postmark specializes in transactional email with industry-leading delivery speed and clean analytics.
Resend — Email for developers. Resend is a modern email API built for developers with React Email support and clean SDK.
Feature comparison
| Feature | Postmark | Resend |
|---|---|---|
| Pricing model | Paid | Freemium |
| Starting price | $15/mo (10k) | $20/mo |
| Free tier | Yes | Yes |
| Open source | No | No |
| Webhooks | Yes | Yes |
| Free Tier | 100 emails/mo | 3,000 emails/mo |
| React Email | No | Yes |
| Batch Sending | Yes | Yes |
| Inbound Email | Yes | Yes |
| EU Data Residency | Yes | Yes |
Postmark
Fast, reliable email delivery
Pros
- Fastest transactional delivery
- Clean, focused UI
- Reliable
Cons
- No marketing email features
- Smaller free tier
Resend
Email for developers
Pros
- Clean modern API
- React Email integration
- Fast support
Cons
- Newer platform, shorter IP reputation history
- Fewer marketing features
Which should you choose?
Choose Postmark if a free tier is important for your stage, and you need production-grade features and are ready to pay. Choose Resend if a free tier is important for your stage.
Frequently asked questions
Which is better, Postmark or Resend?
There is no universal “better.” For most teams, Resend is the safer default because Resend has a larger community and more third-party integrations, which often translates to better long-term support. For edge cases, the comparison table above highlights where each tool wins.
Is Postmark cheaper than Resend?
Postmark starts at $15/mo (10k), while Resend starts at $20/mo. Exact costs depend on usage — check both vendors' calculators before committing.
Can I migrate from Postmark to Resend?
Migration difficulty depends on how deeply Postmark-specific features (APIs, SDK conventions, data schemas) are baked into your app. Most transactional email migrations take days to weeks. Both vendors typically publish migration guides — check their docs.
Is Postmark or Resend open source?
No — both Postmark and Resend are proprietary managed services. If open source is a requirement, see our alternatives pages.
Does Postmark or Resend have a free tier?
Both Postmark and Resend offer a free tier.
Which is best for startups and indie hackers?
Startups usually optimize for the lowest friction to ship and the cheapest possible free tier. The one with the most generous free tier here is Resend. For production workloads, revisit the trade-offs in the feature table above.