Email API for developers — send transactional emails with ease
Email API with RESTful API, SMTP relay, official SDKs, and React Email support.
The API is the cleanest email sending API I've used — one function call with good TypeScript types and no configuration overhead
React Email lets you build email templates with React components and preview them in a browser — the best template development workflow in the email space
The free tier sends 3,000 emails per month which covers most early-stage apps without spending anything
Deliverability is excellent out of the box without having to configure DKIM, SPF, and DMARC yourself from scratch
There's no bulk newsletter sending feature — Resend is designed for transactional email only and you need a separate tool for marketing email
The free plan is limited to 1 domain and 1 API key which is a pain when working with multiple projects simultaneously
Analytics are basic — open rates and click tracking require the paid plan and the reporting UI is minimal
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