[ietf-dkim] DKIM adoption

[Steve Atkins]

On Jul 31, 2009, at 5:51 PM, Franck Martin wrote:

> Yes the reputation of the domain override things, but what happens  
> when it is the first time a domain is seen? Does DKIM help or not?

If there's no DKIM, then there's not really any obvious domain to be  
talking
about when it comes to reputation, so I don't think that's a question  
that
makes sense (at least not without more details as to what you mean
by seeing a domain).

>
> Also, I'm thinking in terms of points like for spammassin. Seeing  
> some patterns in the email increase or lower the points. I don't  
> think a whole reputation judgement would be done on DKIM alone,

Not all the time, no. But if the domain token attached to the message
via DKIM is on a whitelist, or if there's a significant positive  
history,
then it's quite likely that the DKIM based reputation would override
other measures (and would likely be used to short circuit analysis
to avoid expensive content-based work).

> unless the email is proven forged by DKIM but we are not there yet  
> as ADSP is not widely spread nor adopted.
>

Yup. That's probably out of scope for this discussion, anyway.

Cheers,
   Steve