Ken Manheimer <klm(a)cnri.reston.va.us> writes:
> There is a known bug in some recent versions of sendmail (8.8.x for some
> x, and 8.9.0) such that the sendmail will core dump when attempting to
> deliver mailman's (or any 8-bit encoded) Mime-format digests in certain
> (somewhat uncommon) circumstances. The question then is, were the
> messages that never appeared in the users mailbox Mime digests? And if
> not, could you construct a repeatable test that at least reduces the
> likelihood that the problem is on the receiving ends? For that matter,
> might you happen to be running sendmail 8.8.x or 8.9.0? Your sendmail
> may be getting so far as negotiating the delivery and then failing
> partway through...
He should check his mail spool. If sendmail dies, it leaves the
undelivered message to the spool, which then starts to gradually grow.
When I had a broken sendmail, most of the messages still went through.