"LISTSERV list owners' forum" <[log in to unmask]> wrote on 
04/24/2006 02:32:41 PM:

> I haven't checked error messages today, so don't know if I have any of
> these yet (I check error messages for all my lists once per day, in the
> evening).  I would be inclined not to do this as it looks like it may be
> wholesale blacklisting of lists.
> 
> I would be inclined to tell the *subscriber* to complain to Verison, or
> find a more congenial ISP.  I see no reason why listowners should jump
> through various hoops at the whims of this, that, or the other ISP.

I checked my relay's logs and so far, verizon.net is accepting messages 
for the lists here.  We have around 50 lists, most under 200 members each, 
and most are subscribed to their local school mail systems.