[mail-vet-discuss] What is the A-R header really for?

[Tony Hansen]

Eliot Lear wrote:
> So I think in summary we need clearer text on the applicability of this
> header, the jist of which should be that MUAs SHOULD NOT in general
> process it as authentic information.

Not at all. MUAs shouldn't just *display* the results of A-R as an
indication of goodness/badness of the sender. However, it can certainly
process the A-R information and *combine* it with reputation and/or
accreditation information in order to generate something that CAN be
displayed to the end user.

	Tony Hansen
	tony at att.com

> I still believe that certain environments SHOULD strip out others'
> headers, but this is environment specific. As John wrote, MTAs will
> do what they will do.
> 
> None of this obviates the need for more work on mailing list exploders
> and the like that Charles alludes to.