martin gregorie qpnyslgregorieorg id really like fixed littering mail archiving system junk addresses ive attached complete unmodified message annoyancetxt message received end shows contenttransferencoding 8bit whereas original message contenttransferencoding 7bit transferencoding conversion may caused header problem sounds likely thanks information already filter installed immediately downstream sa easy check extending header byte containing 0x80 higher invalid headers must usascii encoding rfc 2821 log details messages containing detoxifying headers stopping upsets guess something like c 0x7f c c 0x80 c 0x20 c c would detoxify invalid header bytes headers without adding significant problems comments martin wed 06 aug 2008 010506 0000 strange headers mail sa users list