I was curious by Scott comment re SPF.
Is there a class of spam that cannot get a DKIM signature?
I would think botnets would be that class, as they usually infect computers and
not sure they could DKIM sign as it would require them to set a DNS entry too.
Knowing that botnets are 70% of spam, if DKIM could solve this one it would be
great.
so my question to add to your question "Does the presence of a signature
provide any objective data about the goodness or badness of the signer?" is:
is there a class of spam that cannot get a DKIM signature?
----- Original Message -----
From: "Dave CROCKER" <dhc(_at_)dcrocker(_dot_)net>
To: "Franck Martin" <franck(_at_)genius(_dot_)com>
Cc: "DKIM WG" <ietf-dkim(_at_)mipassoc(_dot_)org>
Sent: Saturday, 1 August, 2009 4:04:28 PM GMT +12:00 Fiji
Subject: Re: [ietf-dkim] DKIM adoption
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?
Does the presence of a signature provide any objective data about the goodness
or badness of the signer?
If the claim is that it does, there needs to be an explanation of the basis,
because I don't see it.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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