We host a mail server which runs Postfix and there has been a few times where one of our clients computers becomes infected with malware and the password is compromised.
How this has come to my attention is because every once in a while, I will login to the mail server and see an unusually large mail queue which is all being sent to one domain. Is it possible to monitor the queue automatically and have it send me an alert if the postfix queue reaches over a certain threshold? Thanks everyone
