We use a separate server for our spam filtering which sends filtered mail to our postfix server. Lately, however, the spammers have been bypassing our spam server by sending mail directly to the postfix server.
I thought I had it set up right, but I am still able to telnet in from an outside IP that is not in mynetworks and send a message through without authenticating. How can we only accept mail from both our auth users and only our spam server’s IP address? Jeff
