> These messages are normally delivery errors. If you bounce them back to
> the sender, you're in fact bouncing them back to the mail system that
> generated the bounce, which will either reply with another bounce or
> throw them away. Only the list owner can take action by deleting the bad
> address.
I'm confused. I thought these bounces were caused by somebody including
old mail in a new posting and failing to edit out the list headers in the
old mail. I thought listserv bounced them as a loop-preventive. Why
would the original sender's mail system bounce (or throw away) the bounce?
Hmm. I think maybe I've just thought of the answer. Occasionally I see
that particular bounce message on delivery errors not related to a sender's
inclusion of unedited old list mail. I bet that's what you're talking
about in your first sentence above -- although the ones I more often see
are the result of negligence of a subscriber, not a messed-up system.
--Natalie ([log in to unmask])