[ietf-dkim] New issue: Upward query vs. wildcard publication

[Dave Crocker]

Eliot Lear wrote:
> Publish a record at the zone level.  If no other record exists, use 
> that.  If that record doesn't exist, stop.  This is a cheap form of 
> wildcarding.  it requires at most two queries, which while unpleasant 
> for some purists avoids people having to deal with wildcards, which 
> themselves are a pain.


Given that zones are administrative constructs for use by operators, and 
are not intended to be visible to client DNS activities -- and well 
might not be visible, no matter the intent -- then how does the upward 
tree-walk know when to stop?

d/


-- 

   Dave Crocker
   Brandenburg InternetWorking
   bbiw.net