I don't understand why MH feels it has to do that. There are two options, from MH's perspective (forgetting LISTSERV for a moment). Either whatever processes the mail message ignores the "Sender:" field, and MH wasted its time supplying it, or the "Sender:" field is not ignored and we now have a situation where users are tied to the workstation they actually logged in from, which is exactly what a campus mail server is supposed to eliminate. I just don't see the advantage of having a unified, host-independent campus address if you then inject the actual, host-dependent address in a field that will be used by a number of automated mail responders. Eric