Re: WG Review: Domain-based Message Authentication, Reporting & Conformance (dmarc)

[Viktor Dukhovni <[e-mail]>]

On Mon, Jul 14, 2014 at 06:20:35PM -0700, Douglas Otis wrote:

> > This is a solved problem, the "Rfc822.Sender" field should have
> > from the outset trumped the "Rfc822.From" field when determining
> > message origin, and the DMARC policy should be that of the "Sender"
> > domain.  Some MUAs already expose "Sender != From" by displaying
> > "From <sender> on behalf of <author>".  This needs to become standard
> > MUA behaviour.
> 
> Viktor,
> 
> You are right, but this provides a domain not always seen by
> recipients.  Only the From header field is surely displayed.

That means that some corner cases will remain unsolved until MUAs
evolve to catch up.  Pretending there is no elephant in the room
is a poor long-term strategy.

Work to improve the deficient MUAs.

-- 
	Viktor.