On 6/25/20 8:17 AM, Dave Crocker wrote: > On 6/24/2020 12:24 PM, Jim Fenton wrote: >> You have explained why Sender: is better than From: (which I agree with) >> but not why specifically Sender needs to be used. > > Existing practice is less risky than new practice. The existence and > semantics of Sender: has been around for 45 years. Its semantics > match what is > > >> I see the use of a >> long-standing header field as being a disadvantage, not an advantage, >> because of potential obscure uses we don't know about. > > That line of logic means we should never modify or add to any existing > practice. > We disagree. But I suggest we not bikeshed this any further until the WG reaches rough consensus on whether DMARC binding specifically with the From: domain is essential. Then we can decide what the "color" of the header field should be.
-Jim _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc
