What it does
Resend is an e-mail API for developers: send transactional e-mails from your own domain with a simple REST call, write templates in React or HTML, and track deliveries, opens, clicks and bounces through webhooks. SDKs are available for many languages. The free plan allows 3,000 e-mails per month (at most 100 per day) and up to 3 domains; paid plans offer more.
More information: https://resend.com/docs/api-reference/introduction