Fits the stack you already run.
Drin speaks standard REST, SMTP and webhooks — so it slots into the tools you already use. Send your Supabase auth mail through Drin, ship your key as a Vercel env var, relay from any framework, and receive events on your own endpoint.
# Supabase → Project Settings → Auth → SMTP host smtp.drin.run port 465 username drin password $DRIN_API_KEY sender auth@yourapp.com
No glue code required.
These aren't bespoke integrations to maintain — they're the open protocols Drin already speaks. If a tool can point at an SMTP host, set an environment variable, or POST to a URL, it works with Drin today.
Two of the most common setups.
Supabase — Auth SMTP provider
Point your Supabase project's Auth SMTP at smtp.drin.run on port 465, use drin as the username and your API key as the password. Supabase confirmation, magic-link and reset emails now send through Drin — authenticated, suppressed and tracked like any other send.
Vercel — env var & deploy
Add your key as a DRIN_API_KEY environment variable in your Vercel project, then read it from any serverless function, route handler or edge route. No SDK lock-in — a plain fetch to the REST API works on every Vercel runtime.
SMTP — any app
Already have a mailer? Repoint Nodemailer, Django, Rails or Postfix at smtp.drin.run with your key as the password. No rewrite, same delivery pipeline as the REST API.
Webhooks — your endpoint
Register an HTTPS endpoint and Drin POSTs signed delivery, bounce, complaint and open events as they happen. Verify the signature, update your database, and react in real time.
Slot Drin into your stack today.
Grab a key, set one env var or four SMTP settings, and you're sending. Test in the sandbox; production starts at $3 a month.