----- Original Message -----
> From: "Scott Kitterman" <skl...@kitterman.com>
> To: dmarc@ietf.org
> Sent: Friday, January 23, 2015 12:30:22 PM
> Subject: Re: [dmarc-ietf] questions on the spec, was ... and two more tiny
> nits, while I'm at it
>
> On Friday, January 23, 2015 12:45:02 Franck Martin wrote:
> > ----- Original Message -----
> >
> > > From: "Scott Kitterman" <skl...@kitterman.com>
> > > To: dmarc@ietf.org
> > > Sent: Thursday, January 22, 2015 10:14:56 PM
> > > Subject: Re: [dmarc-ietf] questions on the spec, was ... and two more
> > > tiny
> > > nits, while I'm at it>
> > > On Thursday, January 22, 2015 23:52:58 Franck Martin wrote:
> > > > ----- Original Message -----
> > > >
> > > >
> > > > I know the receiver can do whatever of the result, and anyhow the
> > > > receiver,
> > > > its rules.
> > > >
> > > > but I'm sorry I don't read anywhere in RFC7208 where f() is defined.
> > > >
> > > > spfresult in
> > > > (pass,fail,softfail,permfail,tmpfail,none,...)=f(check_host(HELO
> > > > identity,
> > > > IP), check_host(MAIL FROM identity,IP))
> > > >
> > > > it may be clear to you, but it is certainly not for me. Would you
> > > > please
> > > > define f()?
> > > >
> > > > (note calling MAIL FROM a combination of RFC5321.mailfrom and
> > > > postmas...@rfc5321.helo does not help clarity either).
> > >
> > > Probably not, but I don't know how else to have dealt with it.
> >
> > First thanks, for describing in details your implementation. Very useful.
> >
> > > f() doesn't exist. SPF's check_host() has inputs and an output. If you
> > > call it twice then you have two outputs to decide how to aggregate.
> >
> > Yes this is where the point is, RFC7208 does not define how to aggregate
> > the
> > results. This is the part which is not clear in the spec, and should be
> > clearly spelled out, me thinks.
>
> I guess that's where we'll have to disagree. I don't know what RFC 7208
> could
> have said beyond "How to aggregate SPF HELO and SPF Mail From checks is a
> matter of local policy". That doesn't really help much. Personally, I don't
> think they can be successfully aggregated into a single SPF result since they
> are about different things.
>
No, no, we don't disagree, I did not express myself correctly. I would like to
see this text you just wrote in the spec
may be something like:
"Aggregating SPF HELO and SPF Mail From checks is a matter of local policy.
This document does not defines a single result nor how to get one, but defines
a result for each check."
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