mouss qpeqrnetoyennet cedric knight greennet wrote snip thanks makes options clear fact one purposes preventing connections getting far policy stage case gps greylisting avoiding relatively cpuintensive database lookups maybe ill request feature meantime may break banned hostnames ip24 blocks one way want tempfail uknown clients offline process parses logs performs ptr lookup cached dns server since postfix lookup client matches acls add block list otherwise add skip list avoid tempfailing client also perfomr lookups helo name many cases helo name matches ptr course pbl lists many clients using zenspamhausorg helps lot finally many zombies helo literal ip dont want reject consider calling reject_unknown_client helo literal ip wed 06 aug 2008 033742 0100 access table unverified hostnames