A few people have been bombing some of our users, and it took its weight on the imail machine, the IMGate handled it just fine.
What I have been doing is figuring out the sending IP and blacklisting it into mta_bw, then deleting all the mail in the queue. That works for a few days until I end up being bombed from another IP. Is there a way to automate the process through a setting in postfix or a script where it automatically black list an IP if it connects more than X amount of times in a specific period? Happy new year, and keep and blockn :)
