Postmark vs Resend
Pricing
Postmark: Free for 100 emails/mo, from $15/mo
Resend: Free up to 3,000 emails/mo, then from $20/mo
Description
Postmark: Transactional email service built around one promise: your emails hit the inbox
Resend: Modern email API that developers actually enjoy using
Pros
- Industry-leading deliverability: 99%+ inbox placement
- Emails typically arrive in under 10 seconds
- Detailed delivery analytics and debugging tools
- 3,000 free emails/month, enough for most early-stage products
- Clean, simple API that takes minutes to integrate, not hours
- Built by the creator of React Email: the DX is noticeably better than SendGrid or SES
Cons
- More expensive per email than Resend or SendGrid
- Transactional email only: no marketing campaigns, newsletters, or bulk sends
- 100 email free tier is barely enough to test with
- Younger service: smaller ecosystem and fewer battle-tested edge cases
- No visual email template builder: you design emails in code (React Email)
- Deliverability is good but has not been tested at the same scale as Postmark or SendGrid
Details
Postmark has been laser-focused on one thing for over a decade: making sure transactional emails hit inboxes, not spam folders. Password resets, order confirmations, shipping notifications: the emails your users actually need to receive. They keep their deliverability high by refusing to send marketing email on the same infrastructure.
You pay more per email than alternatives, but for transactional messages where delivery matters (think: password resets, payment receipts), that premium buys real reliability. If your app sends emails that users rely on, Postmark is the safest bet.
Resend is what happens when someone who hated the existing email APIs built a new one. Created by Zeno Rocha (who also built React Email), it focuses on developer experience above everything else. The API is clean, the docs are clear, and you can have transactional emails working in your app in about 15 minutes.
The free tier of 3,000 emails per month covers most solo founders for months. When you outgrow it, $20/month gets you 50,000 emails. If you value developer experience and clean code over the battle-tested reliability of Postmark or the scale of SendGrid, Resend is the pick.
Verified
