Mandatory Tags for DKIM Signatures
draft-levine-dkim-conditional-03

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Last updated 2018-08-16 (latest revision 2018-02-12)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-levine-dkim-conditional-03.txt

Abstract

The DKIM protocol applies a cryptographic signature to an e-mail message. This specification extends DKIM to allow new signature tags that validators are required to evaluate. The first such tag specifies a second signature that must be present for a signature to be valid.

Authors

John Levine (standards@taugh.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)