I've got an email client on a 550 who's being harassed by email, and want to block a particular email address. I know I can blacklist an email address in spam assassin and have it auto-delete, but rather want it to bounce back to the harassing sender.
Is there a simple way of doing this?
If so, is it server wide or can I make it specific to a hosted domain on the 550?
thnx, Manny