On 24/04/18 22:45, Kurt Andersen (b) wrote: > On Tue, Apr 24, 2018 at 1:10 PM, Jeremy Harris <[email protected]> wrote: > >> On 24/04/18 04:02, [email protected] wrote: >>> https://www.ietf.org/rfcdiff?url2=draft-ietf-dmarc-arc-protocol-14 >> >> Section 3.3: >> For AMS generation, what is the intention regarding oversigning? >> > > Can you clarify what you mean by "oversigning"?
In DKIM you can, in the signature, list a header more times than are actually present in the message. If you do, the addition of another header of that name will break the signature; if you do not it will not, and could obscure the original (depending on the receiving MUA choice). Consider that being done to the Subject: header. (Any more than degree-one oversigning is pointless) -- Cheers, Jeremy _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
