Re: SPF and HELO, was Re: SPF PASS (was: "If you believe that the SPF co

John Levine wrote:
> Yeah.  Too bad that among SPF's many flaws is that it completely
> confuses the HELO domain and the MAIL FROM domain
I agree that the combined HELO+MAILFROM semantics somewhat limit the 
expressiveness of SPF, but as those semantics have been clear since the 
earliest days of SPFv1, I don't think this is a significant problem.

> (and on a bad day, the domains in From:, Sender:, Resent-From:, and
> Resent-Sender:.) 
SPF doesn't do that.  Sender-ID does.  Complain to Microsoft and the IESG.

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