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.
d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
