2.6.0 really is a mystery to me. The domain under study uses p=reject and is getting 100% authenticated in the RUA reports, so it does not fit John's theory.
I always get 2.6.0 from outlook.com servers and a few other destinations. So perhaps it is just their version of "OK so far, but I may block you later in the evaluation process." I would be interested if anyone else has data on extended status codes. If it seems too off-topic for the whole group, you can send to me directly. Doug On Sat, Jul 31, 2021 at 4:24 PM John Levine <[email protected]> wrote: > It appears that Murray S. Kucherawy <[email protected]> said: > >Indeed; I would like to understand what 2.6.0 is meant to convey. As I > >read the IANA registry entries, "2" means success but "6" means there was > a > >media type error. > > I think it's supposed to mean "I accepted your message but I wouldn't have > if I were > enforcing DMARC p=none". > > Since this would be a gift to spammers trying to probe and evade filters, > I find it > very unlikely anyone would implement it, so no. > > R's, > John > > _______________________________________________ > dmarc mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/dmarc >
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