[ietf-dkim] domain (reputation) semantics: selectors vs. sub-domains

[J.D. Falk]

On 2006-07-26 12:46, Mark Delany wrote:

> In any event, the question is, what can be done about it? If we can't
> stop it in the protocol, at best we can write unread admonishments.

I don't think anyone is /actually/ doing selector-based reputation yet, 
though some of us have been thinking and even talking about it.

The need is for a sender (who has been declared trustworthy by the 
receiver via some entirely unrelated mechanism) to define different 
classes of mail within the same user-facing domain.  Doug tried to 
answer this need with his r= proposal, but it made too many assumptions 
about what those classes of mail would be and how they'd be treated.  If 
subdomains can fill the need without adding any new complexity -- and it 
sounds like they can -- then that's easy enough.

-- 
J.D. Falk, Anti-Spam Product Manager
Yahoo! Communications Platform Team