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