hanspeter kunz rnthwifiuzhch hi wietse thanks fast reply fri 20080222 0721 0500 wietse venema wrote hanspeter kunz hello im trying rewrite received headers sasl authenticated senders order avoid mails classified spam sending dynamic ip header_checks pcrepcre_dirauth_received_header_anonymisationpcre works fine one recipient received 1921682111 80218159224dclienthispeedch 80218159224 authenticated sender hkunz nikolaiifiuzhch postfix esmtp id 342302a6b2b wed 20 feb 2008 180717 0100 cet rewritten something like received authenticated sender hkunz nikolaiifiuzhch postfix esmtp id 1069b2a6b31 wed 20 feb 2008 181646 0100 cet soon recipients cc received header rewritten looks header_checks applied emails use postmap q received header email matched rewritten correctly observation incorrect postfix log sasl username regardless number recipients postfix log mail multiple recipients yes realized please note two matching rules anonymise received headers saslauthenticated clients note host name nikolai purpose received digit715 _alnum digit715spaceauthenticated sender spaceby nikolaiifiuzhch esmtp id afdigitspacefor replace received authenticated sender 3 4 5 6 id 7 8 9 received digit715 _alnum digit715spaceauthenticated sender spaceby nikolaiifiuzhch esmtp id afdigit replace received authenticated sender 3 4 5 6 id 7 8 one case one recipient first rule one match one recipients second rule rule matches received header emails several recipients test postmap q nevertheless header rewritten cheers hp hanspeter kunz university zurich systems administrator department information technology email rnthwifiuzhch binzmühlestrasse 14 tel 410446356714 office 2e07 httpwwwifiuzhch ch8050 zurich switzerland spamtraps fqnjwodsxjailabch hkunzbogusifiuzhch buttered bread lie thu 07 aug 2008 185537 0000 header_checks handled differently emails one recipient