Re: proposed Received-SPF trace header

On Mon, 23 May 2005 10:30:18 EDT, John Leslie said:

> ] 7.  The Received-SPF header field
> ]
> ]  It is RECOMMENDED that SMTP receivers record the result of SPF
> ]  processing in the message headers.  If an SMTP receiver chooses to do
> ]  so, it SHOULD use the "Received-SPF" header defined here for each
> ]  identity that was checked.  This information is intended for the
> ]  recipient.  (Information intended for the sender is described in
> ]  Section 6.2, Explanation.)
We may be able to dodge the bullet on this one, by suggesting that the results
of the SPF check be encoded in the Received: header in a manner analogous to
the current logging of STARTTLS. Given the issues listed in sections 9.3 through
9.5 of the draft, this *isn't* something that "most" hops will include - the 
message
I'm replying to has 8 Received: headers, of which only 2 could possibly have a
sensible result to an SPF check....

>    We SHOULD discuss on this list whether such a header can be considered
> a "trace field"; and I'd like to suggest that we do so in a context of
> what "envelope information" means.
We should probably do this anyhow...

>    Unfortunately, we currently have vagueness about envelope.
> draft-crocker-email-arch discusses:
By fixing this document as required....

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