Firebase Email Wizard deploys production-ready send and receive Cloud Functions to your own Firebase project, wired to Resend, with logging to Firestore. No copy-pasting tutorials. No half-working snippets. Just working email.
Sign in, pick a project, paste your Resend key. The Wizard builds and deploys both functions for you.
Outbound API plus an inbound webhook that stores mail in Firestore and forwards it where you want.
Everything runs in your Firebase project. Your Resend key only ever touches your own functions config.