On 2006-04-19 14:42, Tony Hansen wrote:
Murray S. Kucherawy wrote:
Tony Hansen wrote:
My MTA is in one administrative domain: my ISP's. My MUA is in another:
mine. They need standards to communicate information properly.
IMAP and POP extend across the same set of administrative domains; they
need standards to communicate properly.
But aren't you and your ISP both in the same administrative domain in
that context, in the same way that in a work environment you and your IT
team are in the same administrative domain?
No. I'm not in hotmail's administrative domain, gmail's administrative
domain, nor yahoo's administrative domain, etc. Yet my MUA can talk with
pop servers in all of them, and receive messages addressed to me in
those different administrative domains. Once those messages have been
transferred to my MUA, they've crossed an administrative domain boundary.
There's also the issue of forwarding -- as one somewhat lame example, it
may be useful to know that a message's DKIM signature was checked as
valid before the message was forwarded (assuming the next hop trusts the
forwarder, which is a different issue.)
--
J.D. Falk, Anti-Spam Product Manager
Yahoo! Communications Platform Team
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