For a particular list that I co-operate, I used to unsubscribe
users that bounced (who met my personal algorithm) instead of
setting them NOMAIL (due to the fact that those users usually
would broadcast a message back to the list when they realized
after about a week of not receiving 100 messages that something
was amiss :-().
 
With the latest version of LISTSERV (1.8b), a list-owner option
of NOPOST is provided.  Now what I do is
 
SET listname NOPOST NOMAIL FOR userid@node
 
Remember that NOMAIL does not cause the DIGEST/INDEX option to
be forgotten, so that when/if you are ready to return this user
to normal service i.e.,
 
SET listname POST MAIL FOR userid@node
 
the actual distribution option of either MAIl, DIGEST, or INDEX
is restored.
 
NOPOST prevents the subscriber from posting to the list.  They
can not negate that option.
 
--  co-owner INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L
[log in to unmask]      "It may not be SPAM, but it ain't kosher either!"
31 Shields Bldg. -- Penn State Univ -- University Park, PA 16802-1202 USA