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| DomainKeys
Identified Mail (DKIM) |
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DomainKeys Identified Mail (DKIM) lets an organization take
responsibility for a message while it is in transit. The
organization is a handler of the message, either as
its originator or as an intermediary. Their reputation
is the basis for evaluating whether to trust the message
for delivery. Technically DKIM provides a method for
validating a domain name identity that is associated
with a message through cryptographic authentication.
The DKIM.org website is hosted by MIPA
(Mutual Internet Practices Association).
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| Introduction |
The first version of DKIM synthesized and enhanced Yahoo!'s DomanKeys
and Cisco's Identified Internet Mail specifications. It was
the result of a year-long collaboration among numerous industry
players, during 2005, to develop an open-standard e-mail authentication
specification. Participants included Alt-N Technologies, AOL,
Brandenburg InternetWorking, Cisco, EarthLink, IBM, Microsoft,
PGP Corporation, Sendmail, StrongMail Systems, Tumbleweed,
VeriSign and Yahoo!. The team produced the initial specification
and several implementations. It then submitted the work to
the IETF for further enhancement and formal standardization.
The IETF has now approved the revised specification as a Proposed
Standard and published it as RFC
4871.
- DKIM 3-slide Teaser, D.
Crocker » pdf, ppt
- DomainKeys Identified Mail (DKIM): Introduction
and Overview, E. Allman » html, pdf, ppt
- DomainKeys
Identified Mail (DKIM) Service Overview, draft-ietf-dkim-overview » pdf, html, txt
- E-Mail Authentication Proposal DomainKeys Identified
Mail Submitted to the IETF for Consideration as a new
E-Mail Standard to Address E-Mail Forgery and Phishing, Press
Release, July 2005 » html, txt
- Frequently Asked Questions » FAQ
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| News |
DKIM In the News
- DKIM-a-Palooza, Ray Everett-Church,
November 19, 2007 » Earthweb
- Internet Messaging Leaders Work Together
to Fight Email Fraud: Email Testing Event
Strengthens Sender Accountability, DKIM Interoperability
Testing Event press release, 6 Nov 07 » html, pdf
- Battle to beat fake Ebay e-mails, BBC News,
4 Oct 2007 » html
- You've Got Spam, Wall Street
Journal Online,
6 Sep 2007 » html
- 'Netheads' gather in Chicago to improve Internet,
Chicago Tribune, 27 Jul 2007 » pdf
- Deutschlandfunk Radio article on DKIM, 8
Apr 2007 » mp3, txt
- DKIM Submitted to the IETF, July 2005 » txt
Milestones
Oct 2007
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DKIM First Interoperability Testing
Event, Dallas TX,
24-25 Oct 2007
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May 2007
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DKIM base specification standard published as RFC 4871.
(Other formats are available.)
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Feb 2007
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DKIM base specification approved by
IETF as a Proposed
Standard
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Sept 2006
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Publication of "Analysis of Threats
Motivating DomainKeys Identified Mail (DKIM)"; RFC 4686
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Aug 2006
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IETF DKIM Working group requests formal
IETF standards approval, for DomainKeys
Identified Mail (DKIM) Signatures.
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| Industry Activity |
Support
Here is a List of Organizations that
have agreed to be listed as supporting DKIM.
Press Contacts
A number of organizations have offered Press
Contacts for matters relating to DKIM.
Coming up
Past Events
- Email is Authenticated. Now What?, 2007
RSA Conference, Jim Fenton/Cisco & Eric Allman/Sendmail;
San Francisco, Feb 2007
- Authentication
and Online Trust Summit 2007.
- DKIM Working Group Meeting, IETF
68, Prague, Czech Republic, Mar 2007
- DIMACS
Information Security Workshop, Eliot Lear/Cisco;
Rutgers University, NJ; Jan 2007
- Hitchhiker's
Guide to Email Authentication, Murray Kucherawy/Sendmail, LISA06,
Washington DC., Dec 2006
- DKIM
Working Group Meeting, IETF
67, San Diego, Nov 2006
- DKIM Working Group
Meeting, IETF
66, Montreal, July 2006
- Sender
ID Framework and DKIM, E-Mail Authentication
Summit II, Chicago, April 19, 2006
- Session
6: DKIM, 5th Annual PKI R&D Workshop,
NIST, Gaithersburg, MD, April 4-6, 2006
- DKIM Working Group Meeting, IETF
65, Dallas, 20 Mar/1300-1500 and 22 Mar/1510-1510
- DKIM Summit I, Santa
Clara, Feb
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| Deployment |
Specifications
that are stable
The current specifications are recommended for immediate
use:
- DomainKeys
Identified Mail (DKIM) Signatures, IETF
Proposed Standard, RFC 4871 » html, pdf, txt
For specifications under development, see Enhancement.
Implementations
See this list of Organizations
Providing Software, Hardware or Services with
DKIM.
Installations
See this list of End-User
Organizations with DKIM Support in their
current mail stream.
Operations
An operations-related mailing list is available: dkim-ops.
Development
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| Enhancement |
Standardization
The IETF has
chartered the DKIM Working Group,
seeking refinement and standardization of the DKIM specifications.
Related
Work
- Reporting of DKIM Verification Failures, draft-kucherawy-dkim-reporting » html, pdf, txt
- Abuse Feedback Reporting Format (ARF) » home
- Message Header
Field for Indicating Message Authentication Status (Auth-Results) » html, pdf, txt » mailing
list
- Vouch By Reference (VBR) » home
IPR
Yahoo's DomainKeys resulted
in an Intellectual
Property Rights claim concerning that applies to the
DKIM specification.
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