A LISTSERV postmaster can assign a password for another address using
the PWC command:

PWC          function                          Password file management:
             ADD    user newpw                 -> Define a password for the
                                                  specified user
             DELete user                       -> Delete password for that user
             Query  user                       -> Query the password of the
                                                  specified user


I believe the postmaster has to authenticate this command using the
CREATEPW password.

Francoise