Noel, "REG" is an abbreviation for "REGISTER". It takes one operand, your name. Its function is to add an entry to the SIGNUP FILE for the requesting user with the requested name. That name will then be put on all mail sent to the user (except from lists they're already subscribed to). It's a handy way of changing your default name, or setting one if you're not on any lists at that server (I'm on the LISTSERV Coordination Board, so I get mail from every LISTSERV in the world, most of whom I have no regular traffic with. If I want, I can have a different name at each one, by sending a REGISTER command.) I guess this is another one that hasn't appeared in the documentation yet. I believe it was added in 1.5f or so. Ross