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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
- DKIM: Introduction and Overview, E.
Allman » html, pdf, ppt
- DKIM
Service Overview, draft-ietf-dkim-overview » pdf, html, txt
- Frequently Asked Questions » FAQ
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- 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
- Wikepedia entry on Domainkeys as
evolved into DKIM.
- DKIM, Roman Valls Guimerà, esCERT —
Introduction, with configuration examples
and performance analysis, countering the myth
that DKIM is expensive » pdf, odp
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| News |
(Also
see: previous news,
milestones and events )
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
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| Back to top |
| 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.
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| Documents |
The current specifications are recommended for immediate use:
- DKIM Service
Overview, draft-ietf-dkim-overview (approved
by working group) » pdf, html, txt
- DKIM
Signatures, IETF Proposed Standard, RFC 4871 » html, pdf, txt
- DKIM Author
Domain Signing Practices (ADSP) (approved by
working group), draft-ietf-dkim-ssp-04 » html, pdf, txt
For specifications under development, see Enhancement. |
| Back to top |
| Deployment |
Implementations
See this list of Organizations
Providing Software, Hardware or Services with
DKIM.
Consulting
See this list of Consulting
Services for assisting with DKIM development
or deployment and use.
Installations
See this list of End-User
Organizations with DKIM Support in their
current mail stream.
Lars Eggert maintains a tally of the DKIM adoption
rate.
Operations
An operations-related mailing list is available: dkim-ops.
Development
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| Back to top |
| 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 » txt
- Abuse Feedback Reporting Format (ARF) » home
- Message Header
Field for Indicating Message Authentication Status (Auth-Results) » 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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