On Fri 29/Jul/2022 19:44:28 +0200 John Levine wrote:
It appears that Alessandro Vesely <ves...@tana.it> said:In general, it is not possible to determine DNS zone cuts by querying various subdomains. However, DMARC users define DMARC records at their Organizational Domain, so it is possible to discover them based on that.Sorry, but this is just wrong. DMARC and the tree walk have nothing, and I emphasize nothing, to do with zone cuts.
I thought a zone cut marked the boundary where an organization delegates control to another one. In many cases, that would be the org domain, no?
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