Re: per message databases, was antiphishing idea

"John Levine" <[email protected]> 19 Nov 2011 19:05:13 -0000

Newsgroups	gmane.ietf.asrg
Message-ID	<[email protected]>

>The receiving MTA would look for something like 
>'12345-gmail.com._msgids.paypal.com'
>
>It looks up the message ID in a zone related to the From address, NOT 
>the zone related to the message id.

I think we need a new category of FUSSP for anything that requires the
sender to maintain a public per-message database of all the messages
it's sent.  To put it mildly, this really REALLY doesn't scale.

R's,
John

PS: I'm not saying this is the only reason that looking up the message-id
isn't a good idea.