I’m saying, as an individual, that there was a thread where we discussed a
new N for the tree walk. There was appetite, but no new N was settled on.

Given that prior appetite but no conclusion, I believe as part of WGLC we
should choose that N. I proposed what I think would work. John Levine
chimed in that he thought that was reasonable.

Do you have operational experience as a report consumer that this would be
a mistake and more complicated organizations should not be able to receive
reports?

Seth Blank | Chief Technology Officer
Email: s...@valimail.com


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On Sun, Mar 31, 2024 at 16:19 Scott Kitterman <skl...@kitterman.com> wrote:

>
>
> On March 31, 2024 7:49:08 PM UTC, Seth Blank <seth=
> 40valimail....@dmarc.ietf.org> wrote:
> >On Sun, Mar 31, 2024 at 1:40 PM Scott Kitterman <skl...@kitterman.com>
> >wrote:
> >
> >>
> >>
> >> On March 31, 2024 5:32:13 PM UTC, "John R. Levine" <jo...@iecc.com>
> wrote:
> >> >>>> I’m probably being pedantic here: is “gov” a domain?
> >> >>> Yup, it's a domain.
> >> >> I stand corrected on that.
> >> >
> >> >Anything that meets the DNS spec is a domain namen, e.g.,
> >> argle.bargle.parp is a domain name.  If and how particular names might
> be
> >> resolved is a topic to which the IETF and ICANN have given a certain
> amount
> >> of attention.
> >> >
> >> >> Might be worth bumping up. Examples:
> >> >>
> >> >> execute-api.cn-north-1.amazonaws.com.cn
> >> >> cn-northwest-1.eb.amazonaws.com.cn
> >> >>
> >> >> (Amazon seems to have most of the really long ones)
> >> >
> >> >None of those Amazon ones are used for mail so they're irrelevant to
> >> DMARC, but see Seth's recent message.  He says he's seen mail domains 8
> >> deep.
> >>
> >> I need to write a response to that, but he's made the claim before and
> >> they are from deep within a PSD.  The idea that we need to change the
> >> number as a result got no traction.
> >>
> >
> >That's not true. There was not consensus on a new N, but there was also
> not
> >resistance to increasing it. Multiple operators have confidential
> examples,
> >and I also have some.
> >
> >Remember, the issue is with *reporting* discovery and not org domain
> >lookup. Those that collect reports see the issue, but cannot break client
> >confidentiality to share the examples.
> >
> That's not my recollection.
>
> Are you saying as co-chair that any issue for which there was not a formal
> consensus call is still open for discussion?
>
> Scott K
>
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