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Resend
Sends the emails your app owes people: receipts, resets, welcomes.
1. Learn it
- Transactional email is one-to-one and expected; marketing email is not. Keep them apart.
- You verify your domain so mail servers believe you are you — otherwise you land in spam.
- Every email needs a plain-text fallback and a real reply address.
Cost: Free tier of a few thousand emails.
2. Practice it
Simulated — nothing real happensWrite the password reset
Draft the subject line and two sentences of a reset email. No marketing.
3. Connect it
Real — your own account- 1Create a Resend account, verify a domain, store the API key as a secret.
MessyDev never signs you up, spends your money, or touches your accounts. You do that part.
4. Use it
Any app with accounts, orders, or anything worth confirming.
Honest alternatives
There is no single correct stack. Any of these would be a reasonable choice instead.
- Postmark
- SendGrid
- Your platform's built-in email