-----Original Message-----
From: Franck Martin [mailto:franck(_at_)genius(_dot_)com]
Sent: Monday, April 04, 2011 1:13 PM
To: Murray S. Kucherawy
Cc: ietf-dkim(_at_)mipassoc(_dot_)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.
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