The mailbox mail queue is piled up by a large number of spam.
The mailbox mail queue is piled up by a large number of spam messages (or users receive a lot of messages to send failed bounces)
The recipient is randomly produced by the algorithm and sent to an external public mailbox server.
After judging that the password of the user's smtp account has been stolen or cracked, the user's password needs to be modified. If domino changes the Internet password, you need to execute tell adminp proc all in the server console immediately.
