At 15:32 03/16/2004 Tuesday, Claude Etienne wrote: >Pete Weiss........Thanks but unfortunately, your suggestion didn't work. I >get a none deliverable message saying the address doesn't exist (which I >expected because it is a fictitious address) and the list name still appears >in the TO: line with the actual recipient address in the BCC: line. I tried this myself this afternoon. Subscriber set to IETFHDR, listname was in the BCC:, non-existent userid (valid hostname) in the TO: field. Mail was transmitted and the listname did NOT appear in the TO:. Mail did bounce from the non-existent TO:. I could have sent it to a real userid. Depending upon your MTA, it may be that the listname will appear buried in the RECEIVED headers (like it did on mine). /Pete