You can't make LISTSERV use a domain in the Sender: for all lists,
but you can, on a list-by-list basis, by coding the Sender= keyword in
the list header. The syntax is:
Sender= List | None | "address"
The default is List, meaning <listname@listserv-node>. For the
last form, the quotes are required, as in Sender="[log in to unmask]".
WARNING: SETTING THE SENDER: TO SOMETHING OTHER THAN THE ACTUAL LIST
ADDRESS IN <USER@NODE> FORM MAY BREAK LISTSERV'S BUILTIN
MAIL-LOOP DETECTORS.
Ross Patterson
Rutgers University