mouss qpeqrnetoyennet ki song wrote changed settings maincf file restarted postfix still getting hammered spammer sending tons emails cphurvisacom outside inside insider best approach enforce authentication outsider cant require _we_ use domain _our_ sender addresses way disallow messages cphurvisacom problem always show relevant logs people see ways help blocking sender right approach need look patterns relevant logs needed anyway consider using reject_rbl_client zenspamhausorg reduce spam load thu 07 aug 2008 080209 0100 restricting senders