Hi all can someone please clear something up for me? When LISTSERV looks at an email header what RFC822 field does it search to decide who is sending it: FROM, REPLY-TO, PATH, or SENDER? I'm assuming that it looks in the FROM field but I'd just like a confirmation of this. The reason I'm asking is that I have a subscriber who is unable to send commands to LISTSERV. I've checked his subscription details and they seem OK. I then checked his email headers to see what they contained. I noticed that he's got different entries in FROM and REPLY-TO. The FROM address is the same as the subscribed address so I'm at a loss as to why he can't issue commands. (It's probably in the doco somewhere but I'm stuffed if I can find it.....brain fuzzy....too little sleep....zzzzzzzzz) Chazzozz!! Michael Shannon Webmaster [log in to unmask] "Before you can grow old and wise you must first survive being young and stupid." - Ancient Proverb Note: Views expressed on this list are my own and do not reflect the views, opinions or position of my employer.