Re: Trust, and who knows what (was Re: SPF abused by spammers )

Dave Crocker <[email protected]> Sun, 19 Sep 2004 12:29:42 -0700

Newsgroups	gmane.ietf.mxcomp
Message-ID	<2004919122942.258756@bbprime>

Mark,


On Sun, 19 Sep 2004 10:57:50 -0700, Mark C. Langston wrote:
>  But with SPF, the trust you're being asked to place is not whether the
>  sender is authorized to use that MAIL FROM:; it's whether the entity
>  connecting to your MTA (the destination MTA, presumably) is one
>  associated with the MAIL FROM: RHS.  It's a somewhat subtle, but
>  important, distinction.

I think that summarizing SPF as asking "whether the sender is authorized to use 
that MAIL FROM:"

Rather than simply giving a different summary that is valid, could you please 
explain what is wrong with the semantics of this one?

d/
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