Hey all, Recently, Barracuda Central has been blocking our IP for sending SPAM. I've tried to get concrete examples from them and they have nothing for me. We have 200+ domains on this particular server and I'm looking for perhaps the best way to track this down? Is it possible to only accept and send out going mail from the localhost only (meaning that anyone not on the server cannot use this server as an SMTP server?) After that, what would be the best way to look for a rogue script sending mail? Thanks!