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Re: TURN and disconnected SMTP with dynamic IP addresses



"Jeff Stephenson" writes:
> The obvious solution to this problem is the now-deprecated TURN command
> coupled with client authentication to the server.  In the past, it made
> sense not to support TURN because of the security concerns associated with
> it.  With client authentication on the horizon, though, those concerns can
> now be addressed.

Could you please explain how this theoretical deployed client
authentication solution works, given that I (an IETF security geek) am
not aware of a deployed infrastructure to do it?

Perry