noel jones ubdarhmeganvbhcsorg bryan irvine wrote im getting spam thats got obviously fake addresses obvious fake using real hostname tried writing regexp doesnt work make email address bofhbcmx2mydomaincom still delivers maincf ive put header_checks regexpetcpostfixheader_checks header_checks mx2mydomaincom reject hostname bryan regexp wrong means zero proceeding character use mean zero anything mx2examplecom reject invalid address probably better done check_sender_access map noel jones thu 07 aug 2008 233220 0600 failing header_checks