martin gregorie qpnyslgregorieorg hi michelle wlbpaliggfadgregorieorg users possible header line contained sentence postfix address rewriting add examplecom every word fail find mailboxes bounce message result however ive found another way upset postfix get mail isp fetchmail 637 run single drop mode use mda facility pass mail pipeline spamc spamkiller sendmail spamkiller code drops mail sa marks spam passes rest sendmail delivery postfix fetchmail passes routing information sendmail via command line using string like f sender_address_from_envelope user user destination mailbox yesterday found fetchmail sometimes corrupt sendmail arguments adding spurious spaces andor byte range 0x01 0x1f end final argument also cause postfix reject message rewritten delivery address say userexamplecom examplecom ive written another filter clean argument string collect evidence submit bug report subject subject accidently typed text subject field equally likely put field agree subject means header left blank best regards martin gregorie wed 06 aug 2008 030526 0000 strange headers mail sa users list