text_combined: vvrpgsporcupineorg hanspeter kunz tests postmap meaningful unless jump hoops preserve multiline format received headers im sorry bother understand problem postmap q test works received header single line matched rewritten intended mails one several recipients one recipient postmap q received 1921682111 80218159224dclienthispeedch 80218159224 authenticated sender hkunz nikolaiifiuzhch postfix esmtp id 342302a6b2b wed 20 feb 2008 180717 0100 cet pcreetcpostfixpcreauth_received_header_anonymisationpcre replace received authenticated sender hkunz nikolaiifiuzhch postfix esmtp id 342302a6b2b wed 20 feb 2008 180717 0100 cet two recipients postmap q received 10012 8474166124dclienthispeedch 8474166124 authenticated sender fuchs nikolaiifiuzhch postfix esmtp id 1d3792a6b2f fri 22 feb 2008 123847 0100 cet pcreetcpostfixpcreauth_received_header_anonymisationpcre replace received authenticated sender fuchs nikolaiifiuzhch postfix esmtp id 1d3792a6b2f fri 22 feb 2008 123847 0100 cet postfix received header consists multiple lines text lines separated newline character first line starts received subsequent lines begin horizontal tab examples received 1921682111 80218159224dclienthispeedch 80218159224 authenticated sender hkunz nikolaiifiuzhch postfix esmtp id 342302a6b2b wed 20 feb 2008 180717 0100 cet received 1921682111 80218159224dclienthispeedch 80218159224 authenticated sender hkunz nikolaiifiuzhch postfix esmtp id 342302a6b2b wed 20 feb 2008 180717 0100 cet thats one tab start continued line postmap command uses matching code header_checks wietse thu 07 aug 2008 143426 0500 header_checks handled differently emails one recipient