Charles,
Forgive my sloppy message, but netnews *is* a separate case, and I'm not
going to go there with you on this list (others already have). Mail /
Unicast mechanisms require either 3rd party authentication or the
message to flow back to the 1st party through some authenticated and
trusted chain. So, for instance, consider GPRS. If I have an email
address lear(_at_)cisco(_dot_)com that I want to use to send mail from my phone,
then either I use my corporate MSA or there is a third party record of
some sort for my provider. Those are really the only two possibilities,
and neither of which is a substantial architectural change.
Eliot
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