I think the issue here is that people who work directly with DNS
operations have a specific meaning of "zone cut" that differs from
what others think of as zone cuts. Let's try to avoid using that
term, and instead be clear about what we mean. Ale, if you disagree
with John, be clear about what you disagree with, without using the
term "zone cut".
Barry
On Wed, Mar 1, 2023 at 9:35 AM John Levine wrote:
>
> It appears that Alessandro Vesely said:
> >
> >What are subdomains being used for?
> >
> >Is that more often done for email reasons (MX) or for something else?
> >
> >What changes when there is a zone cut (delegation) rather than having
> >sub-subdomains all in the same zone?
>
> In case it's not clear, the answer is NOTHING AT ALL CHANGES.
>
> DMARC does not look at zone cuts. It has never looked at zone cuts. If
> I have anything to say about it, it will never look at zone cuts.
>
> Some people believe that a zone cut indicates a change of control.
> They are wrong. Sometimes different people are in charge when there is
> a zone cut, sometimes not, sometimes DNS records managed by different
> people are in a single zone, managed in some way you can't tell by
> doing DNS queries.
>
> R's,
> John
>
> ___
> dmarc mailing list
> dmarc@ietf.org
> https://www.ietf.org/mailman/listinfo/dmarc
___
dmarc mailing list
dmarc@ietf.org
https://www.ietf.org/mailman/listinfo/dmarc
