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Re: [ietf-smtp] [Shutup] chained authorizationm, was Proposed Charter for the "SMTP Headers ...

2015-11-30 10:47:04
On 11/30/2015 8:21 AM, John Levine wrote:
If you're relaying the email on to somewhere else then you're assuming
that there's a mechanism by which your policy regarding SPF becomes
known to those other people.

I'm unaware of such a mechanism existing at the moment --

That's more or less what Authentication-Results and the deprecated
Received-SPF headers do, recording a snapshot of what the SPF results

Probably relevant, current work:

     Authenticated Received Chain (ARC)

Dave Crocker
Brandenburg InternetWorking

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