(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 <jo...@taugh.com> wrote: > In article <CAL0qLwa-iuyB_iNQU+g6e3NH1+q0W413RaCZcHp== > s9cqa7...@mail.gmail.com>, > Murray S. Kucherawy <superu...@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, jo...@taugh.com, Primary Perpetrator of "The Internet for > Dummies", > Please consider the environment before reading this e-mail. https://jl.ly > > _______________________________________________ > dmarc mailing list > dmarc@ietf.org > https://www.ietf.org/mailman/listinfo/dmarc >
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