I got the latest version of the list software installed. There are a few
options for combatting the issue with the rejection of messages from aol
and yahoo users.
The main options are to change the From: header for people with domains
that are restrictive. My understanding (without having experimented yet)
is that you'll see messages from aol and yahoo people showing up as being
from tesla@xxxxxxxxxx and messages from other subscribers as themselves.
The other option is to wrap the message so they are like one message
digests. I'll send this same message twice, once with the from munging
option and second with the wrapping.