4.2.9. Configure incoming mail processing for non-existent addresses

For messages that are sent to non-existent mailboxes in the mail domain, you can select the processing method.

1. Open the "Mailboxes" section.
2. At the top of the page, click "Settings".
3. Select the processing method and save the changes:
   • "to sender (delete)" — return messages to sender with error "user unknown" and delete them (default method).
   • If a mailbox is selected — deliver messages to this mailbox.