On 06/25/2018 04:44 PM, Dave Crocker wrote: > On 6/25/2018 5:38 AM, Kurt Andersen (b) wrote: >> That's the right approach, but the ambiguity of what a validator might >> do is why we thought it best to be explicit. > > > Yup. > > Anything that comes close to 'do whatever you want with this > information' demonstrates NON-standardization. > > If the creator of the information does not have a reliable way of > knowing what the receiver of it will do with it -- I mean interpretation > of the information, not follow-on policy decision-making -- then it > isn't a standard.
On that view, the spec should be either "any tag not specified here, in any of the three ARC headers, invalidates the ARC set" or "any tag not specified here, in any of the three ARC headers, MUST be ignored". -- Cheers, Jeremy _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
