Email - Xitter

Xitter sends mail for sign-up codes, email confirmations, password resets and notification digests. Without a mail setup, nothing is sent.

Options

Your own mail server
Resend

Set SMTP_URL:

SMTP_URL=smtp://user:pass@mail.example.org:587    # STARTTLS
SMTP_URL=smtps://user:pass@mail.example.org:465   # TLS

Percent-encode @ in the user name (%40).
The host must be the name on the server’s certificate.

Set RESEND_API_KEY to a Resend key.

With both set, Resend sends what SMTP refused. Set MAIL_FROM to the sender, for example Xitter <noreply@xit.example.org>. Its domain must be the mail server’s, or verified in Resend.

Test it

Admin > Email sends a test mail and shows the server’s answer. It also lists every mail Xitter tried to send.

What changes with mail set up

Sign-up asks for a 6-digit code mailed to the address.
Settings > Email changes the address with a confirmation link.
Password reset by email works.
People can turn on email digests of activity and new messages, sent while they’re away.