Your "twice through the server" rule may work well for your list, but
it cannot be applied on a site-wide basis, because it will break every
moderated list on the server. Your list may be configured to allow
subscribers - or even non-subscribers - to post freely, but any server
hosting more than a handful of lists will almost certainly have at
least one list which is configured to require editor approval for at
least some postings, and any posting which goes through the approval
process will have headers which make it appear that the message passed
through the server twice.

>
> On Wed, 28 Mar 2001, j newton wrote:
> > The "twice through the list server" thing works very well for me on my
> list,
> > but once someone has been detected as a bouncer, is there any way for me
> to
> > tell the list server to stop distributing post from them? I am currently
> > deleting the subscriber the instant I see the first bounce (with 2000
> > members, I can't afford to be nice about it) but I still see round after
> > round of bounces come through from the same person.
>

--
Paul Russell
Senior Systems Administrator
University of Notre Dame
(#5 on the Top 20 sites by number of lists)