Domain reputation

From: Murray S. Kucherawy <>
Date: Wed, 8 Jun 2011 14:41:03 -0700 (PDT)

Hi all,

The obvious follow-on application to DKIM is one that makes use of the
data DKIM provides, namely a verified domain name (i.e., the "d=" value).
As a result of some of the OpenDKIM statistics project work, I've started
working on creating such an application.

The work is in two parts:

1) A set of specifications for doing reputation queries and getting
replies from a service that wants to provide that information (and this is
being done generically, so a system could use the same mechanism to
express a reputation about anything); and

2) Use of DKIM to provide reputation data about domains.

The first part of this is now publicly visible as a set of drafts at the
IETF that I'm hoping will feed into the creation of a new working group.
You can see them by going to:

...and searching for "reputation".

If you're interested in this work, namely the development of the protocols
and specifications, then you should subscribe to this list and express
your interest:

It would be especially helpful for people to say they are interested in
implementing prototypes or participating in experiments, or acting as
editors of one or more of the documents.

You don't have to go to IETF meetings to participate or act as editor,
although it helps. Just being on the mailing list is sufficient, and you
can attend meetings using audio feeds and Jabber as well.

The second part, the actual data analysis, is underway. That's not part
of the specification effort, though it provides the data that will be part
of the replies. That will probably appear in the form of a white paper at
conferences and such in the not-too-distant future. It will be a first
application of the protocols being defined, and a terrific

Any expressions of interest or support here, or especially on the
"domainrep" list, would be very welcome.

Received on Wed Jun 08 2011 - 21:41:19 PST

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