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Randy, thanks for putting this draft together -
we really need to make some progress in this area, and the draft gives us all
some impetus.
There are a few points in the draft that I'd like to see
changed:
1) I'd prefer to see the whole solution provided on the
SMTP port than on some other port. Admittedly if someone is _only_ going
to provide on-demand email service a separate port for a specialized service
might make sense, but in reality anyone who's providing on-demand service is
also going to be providing regular SMTP service. Just making this part of
SMTP seems to make more sense to me.
2) I don't see the need for specifying the domains to be
turned on the TURN command. Since some out-of-band mechanism is required
to link authenticated user IDs and the domains they're allowed to TURN, simply
having the server keep a list of domains to TURN for each ID would be
simpler. With no arguments on the TURN command, adding a domain to the
list for a given ID only requires updating the ISP's configuration; with domain
arguments, both the ISP and the customer would need to update their
configuration in synch.
-- jeff
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