Moodle has two ways of mailing a user:

  • email_to_user(), which is used for account-related notifications which should always result in an email (e.g. email address validation, password resets).
  • The message_email plugin, which may send emails based on the user's notification preferences.

Both of these eventually result in Moodle sending the message to the MTA over SMTP.

Mail in Moodle

  1. Troubleshoot