I haven't seen discussion about this, here. Apologies if I missed it somewhere.
If DMARC evaluation at receivers is updated to allow determination of alignment via tree walk, the XML reporting data sent using that scheme needs to reflect this. Even if a consensus is reached wherein PSL use is deprecated (unlikely?), this change will take a long time (never?) to complete. In the interim, domain owners and data analysis programs looking at report data need a way to understand how a given receiver arrived at its evaluation decision, without having to start with one which may be wrong, and then try the other if necessary. I'm not sure if a single entry in the policy_published area is sufficient or correct - would it be correct to assume that if the receiver noted a treewalk or psl policy (the tag not appearing would indicate old style, psl), that is how they performed all evaluations? --Tomki
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