Hi guys, I tried to get help from the MIMEDefang list, but my posts seemed to be invisible on there for some reason. So if any of you are a MIMEDefang user, maybe you can help me on this. I'm just trying to get my feet wet by adding a sample sub like this in the mimedefang-filter file # # Filter Sender who says they are OHPP.COM # sub filter_sender { my ($sender, $ip, $hostname, $helo) = @_; if ($helo =~ /ohpp\.com$/i) { return (REJECT, "goaway."); } return (CONTINUE,"OK"); } I don't expect to ever receive incoming email from my own domain on this box. But this is not working, any ideas? Many Thanks, Yang