[ietf-dkim] Proposal: Removal of AUID (i= tag/value)

[Murray S. Kucherawy]

> -----Original Message-----
> From: Franck Martin [mailto:franck at genius.com]
> Sent: Monday, April 04, 2011 1:13 PM
> To: Murray S. Kucherawy
> Cc: ietf-dkim at mipassoc.org
> Subject: Re: [ietf-dkim] Proposal: Removal of AUID (i= tag/value)
> 
> the question is:
> What are the domains that use a sub-domain for d= ?
> 
> for gTLDs, what are the instances of d= where there are 3 levels in the
> domain where the 2nd and 1st level is identical.
> 
> eg:
> d=mail1.example.com
> d=mail2.example.com
> d=mail3.example.com
> 
> We could infer that example.com use different mail streams as they use
> different sub-domains to sign their emails
> 
> for ccTLDs, in general you need to go one level deeper
> 
> eg:
> d=mail1.example.com.au
> d=mail2.example.com.au
> d=mail3.example.com.au

So for the 3.5M signatures we've seen, compare each of them to all of the other ones to see if one is X.<domain> while the other is just <domain>?

I'll see what I can come up with.