Nope.  We'd have to roll our own exit and merge it inside the code
that LISTSERV uses to send files to users.  Someone just sent a lengthy
reply regarding the exit they used to do this, but I don't think I
saved it.  Do you need to do that?
 
                                       Mary Papakhian
                                       VM Systems Programmer
                                       University Computing Services
                                       WCC 136.13   855-2597