Postmark
Transactional email service with industry-leading deliverability and developer experience.
Mon experience
Postmark is the gold standard for transactional email. When your password reset email or invoice needs to arrive in the inbox — not spam — Postmark delivers. Their 98%+ deliverability rate isn't marketing fluff; it's backed by their aggressive sender reputation management.
The developer experience is flawless. Clean API, great SDKs, and the webhooks are comprehensive. You know exactly when an email was delivered, opened, bounced, or marked as spam.
The $15/month starting price is steep for a side project with low volume. Resend gives you 3,000 emails free. But if you're sending revenue-critical emails (receipts, account alerts), Postmark's reliability is worth the premium.
Avantages
- +Best-in-class deliverability rates (98%+ inbox placement)
- +Excellent API documentation and SDKs for every language
- +Real-time email analytics with bounce and spam complaint tracking
Inconvenients
- −No free tier — starts at $15/month for 1,000 emails
- −No email marketing features (transactional only)
- −Attachment size limit of 10MB
Ideal pour
Teams that need reliable transactional email and can justify the premium price.
