[Healeys] Healeys list bounces -- but not Shop-talk?

[rwil at sbcglobal.net]

OK.  I am starting to understand that there is something having to do
with the interface between the list's programs and some ISPs, like
sbcglobal.net, which is a subset of att.net, which is somehow linked
to Yahoo, which has decided to make life hard for its customers for
some unknown reason.  But I have a question:

I have been bounced four times by the Healeys list and Never (so far)
by the Shop-talk list.  There are so few postings to the Minis list
that it probably doesn't count.

Both Healeys and Shop-talk are autox.team.net lists.

Why the difference in bounces? It would appear to me that any
difference would have to be at the autox.team.net end of the circuit
since all the rest is identical for both lists.

-Roland