> ## Documentation Index
> Fetch the complete documentation index at: https://devkit4ai.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Integration: Email Notifications

> Send transactional emails in response to platform events.

Email notifications tie in naturally with the policy layer in the backend:

* The placeholder `SendWelcomeEmailWhenUserActivated` policy already exists; replace the logger with calls to your email provider (SES, SendGrid, Resend).
* Treat emails as side effects triggered by events so they remain idempotent and replay-safe.
* This page will host detailed steps and code samples once we finalize the reference integration.