Thanks for the review.
Reviewer: R. Gieben Review result: Ready with Nits Hello, I've just reviewed version 36 of this draft. Found some nits, and I really have only one question. In section 4.5 RFC 1035 is referenced on how a TXT record is structured. However another question I got is how to deal with multiple _dmarc TXT records? Is that allowed or is the assumption there is only one? (Admittedly I haven't read the normative references, so it may be explained there, if so I'm happy to be told, "Miek, go read the references.")
It's in section 4.10, the tree walk, numbered item 6: Records that do not start with a "v" tag that identifies the current version of DMARC are discarded. If multiple DMARC Policy Records are returned for a single target, they are all discarded.
In section 4.10, there is this text: If x < 8, remove the left-most (highest-numbered) label from the subject domain. If x >= 8, remove the left-most (highest-numbered) labels from the subject domain until 7 labels remain. It took me quite a while to realize that '...until 7 labels remain' is the key difference here. This may benefit from some slight rewwording?
That text is the result of quite a lot of negotiation so I'm reluctant to change it unless it's actively wrong.
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