Re: [dmarc-ietf] DMARC bis: ticket 49: remove normative requirement on policy tag placement

(With no hats)

I agree with John the v=DMARC1; is magic and MUST be first.  Everything
else can show up wherever.

tim

On Fri, May 15, 2020 at 9:09 PM John Levine <johnl@taugh.com> wrote:

> In article <CAL0qLwa-iuyB_iNQU+g6e3NH1+q0W413RaCZcHp==
> s9CQA7s1g@mail.gmail.com>,
> Murray S. Kucherawy  <superuser@gmail.com> wrote:
> >It's been a while since the original discussion, but I can't remember why
> >the requirement is there in the first place.  The only benefit I can think
> >of is that having "v=" first lets you decide very quickly if you care to
> >continue, but the savings is really pretty small.
>
> The v=DMARC1; is a magic number that tells you whether it's worth decoding
> the
> rest of the record.  People put a lot of junk at tops of their zones, some
> of which is in k=v format and I would prefer not to try to decode records
> full
> of junk to see of a v= tag is in there somewhere.
>
> Other than that I agree there is no reason to specify the order of
> tags.
>
> --
> Regards,
> John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for
> Dummies",
> Please consider the environment before reading this e-mail. https://jl.ly
>
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