Internet-Draft draft-ietf-dkim-dkim2-spec-02.txt is now available. It is a
work item of the Domain Keys Identified Mail (DKIM) WG of the IETF.
Title: DomainKeys Identified Mail Signatures v2 (DKIM2)
Authors: Richard Clayton
Wei Chuang
Bron Gondwana
Name: draft-ietf-dkim-dkim2-spec-02.txt
Pages: 40
Dates: 2026-05-17
Abstract:
DomainKeys Identified Mail v2 (DKIM2) permits a person, role, or
organization that owns a signing domain to document that it has
handled an email message by associating their domain with the
message. This is achieved by providing a hash value that has been
calculated on the current contents of the message and then applying a
cryptographic signature that covers the hash values and other details
about the transmission of the message. Verification is performed by
querying an entry within the signing domain's DNS space to retrieve
an appropriate public key. As a message is transferred from author
to recipient systems that alter the body or header fields will
provide details of their changes and calculate new hash values.
Further signatures will be added to provide a validatable "chain".
This permits validators to identify the nature of changes made by
intermediaries and apply a reputation to the systems that made
changed. DKIM2 also allows recipients to detect when messages have
been unexpectedly "replayed" and will ensure that Delivery Status
Notifications are only sent to entities that were involved in the
transmission of a message.
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-dkim-dkim2-spec/
There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-dkim-dkim2-spec-02
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-dkim-dkim2-spec-02
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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