This idea was recently brought up on  the LIAISON list. I think it would
be a  possible solution  to the "blabla  no longer  works/studies/has an
account  here" problem.  LISTSERV  could  allow for  the  list owner  to
specify a "normal subscription period" if any. It might also be nice for
LISTSERV to send  out warnings stating that "your  subscription will end
on ... unless you re-subscribe".
 
Another possible solution might be  for LISTSERV to automatically cancel
subscriptions if it gets  mail "returned to  sender, address  unknown" (
perhaps on  two different days?  during one  week? ), but  this solution
seems more prone to problems.
 
Comments anyone?
 
Tony