On Wed, 01 Apr 1998 08:23:35 EST, you said:
> It could be any one of a number of things:
>
> 1) the user is subscribed with personal distribution options other than SHORT
>
> 2) a mail forwarding loop exists and the number of RECEIVED: line headers
> exceeds an SENDMAIL's threshold.

3) A machine running an older release of Sendmail, where the default
limit was 16 or so - for peered lists and lots of e-mail gateways
in the path, it can run out of 16 Received: lines *real* fast.  I
see one or two bounces a week on SAS-L that trip even if the site
has the limit upped to 25.  I currently set it to 30locally.
--
                                Valdis Kletnieks
                                Computer Systems Senior Engineer
                                Virginia Tech