DKIM Deployment

[Jim Fenton <>]

Regardless, the short answer is that we are verifying signatures from
Yahoo and Facebook (actually facebookmail.com) successfully.

-Jim

Dave CROCKER wrote:
> I'm going to suggest that you pursue this on the dkim-testers list:
>
>   <http://tech.groups.yahoo.com/group/dkim-testers/>
>
> I'm pretty sure that's the best choice of DKIM venues for the problem.
>
> d/
>
> Jesse Thompson wrote:
>> So, I've been playing around with the new DKIM verification feature
>> in PureMessage.
>>
>> One thing I notice is that all signatures from Yahoo and Facebook are
>> failing, and mostly succeeding for other domains, including Gmail and
>> Paypal.  Not that I care that much about validating email from Yahoo,
>> but I wanted to know if the problem was on my end, or their end. 
>> Surely Yahoo is correctly signing their mail!?
>>
>> So, I did some testing with the auto-responders listed in the
>> "Interoperability Testing" section of http://dkimproxy.sourceforge.net/
>>
>> It appears that Yahoo's signatures fail for some of the
>> autoresponders, and succeed for others.  Also, it appears the
>> subsequent tests to the same auto-responder yields inverse results
>> (which I can only assume has to do with solar flare activity).
>>
>> So, basically, Yahoo's DKIM signatures are totally inconsistent.  Is
>> this just Yahoo (and Facebook)?  If DKIM is this unreliable for other
>> senders, I don't know how it can be useful for things like whitelisting.
>>
>> Jesse
>>
>