I haven't tried it, but according to the REFCARD


GET          listname <(options>               Get a copy of a list in a form
                                               suitable for editing and storing
                                               list and lock it
             GLobal                            -> Forward request to all peers
             HEADer                            -> Send just the header; on the
                                                  way back, only the header
                                                  will be updated
             NOLock                            -> Do not lock the list
             OLD                               -> Recover the "old" copy of the
                                                  list (before the last PUT)


http://www.lsoft.com/manuals/1.8d/sitemgr/appenda.html

Then compare and contrast.

I believe the latest version of LISTSERV can separates listmangement roles between owner and list configurator