[ietf-dkim] what DKIM is for

[Dave Crocker]

> This disagreement about multiple signatures cuts to the heart of what
> DKIM is for.  If, as Mike Thomas seemed to be saying, the most we can
> get from DKIM is another factor to toss into the spamassassin hopper,
> we're wasting our time.  

Folks,

It seems pretty clear to me that the primary use of DKIM will by in a 
receive-side filtering, like spamassassin.  That said, the nature of the 
information provided is vastly different than most of what such filters use.

Most such information is heuristic in nature.  DKIM isn't. It is 
objective, precise and reliable. 

So the manner in which a filter might use it is fundamentally different 
than most of the "I think this is relevant information" style of 
analysis done by filters.

The "heuristic" aspect of using DKIM information comes in assessing the 
identity, not determining it.  Reputation and accreditation mechanisms 
require some leeway.  Today, even determining the identity is 
problematic.  DKIM fixes tat.

d/