Sign in

Use your Google account. The administrator must register the same OAuth app in Google Cloud that is used for Gmail access.

1. You will be redirected to Google to approve access.
2. After success you return to this app and can open the setup pages.
3. If you see “redirect mismatch”, the admin must add this exact URL under Authorized redirect URIs: …/auth/google/callback (see Gmail settings page when logged in).

Continue with Google

Administrators can limit who may log in with the environment variable AUTH_ALLOWED_EMAILS (comma-separated addresses).