Resend
Modern email sending API. TypeScript SDK, React Email templates, custom domain. The Stripe of emails.
Strengths
- Native TypeScript SDK, send an email in 5 lines of typed code
- React Email: email templates in JSX/TSX, end of hand-written HTML templates
- Complete logs dashboard, see every sent email, status, errors
- Easy custom domain, DKIM/DMARC configured automatically
Limitations
- Free tier limited to 100 emails/day, insufficient for volume transactional
- No built-in newsletter/marketing, Resend = transactional only
- Young player (2023), less battle-tested than SendGrid or Postmark
Best for
- Transactional emails (confirmation, reset, notifications) in a React app
- TypeScript devs wanting maintainable email templates as React components