A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : DKIM Third-Party Authorization Label
Author(s) : D. Otis
Filename : draft-otis-dkim-tpa-label-02.txt
Pages : 20
Date : 2009-10-11
A TPA-Label is a DNS-based prefix for DKIM policy records that acts
as a scheme for domains to authorize acceptable third-party
signatures for messages containing their domain within the From
header. This scheme allows Author Domains to autonomously authorize
a range of third-party domains using scalable, individual DNS
transactions. This authorization extends the scope of DKIM policy
assertions as a means to supplant more difficult to administer
schemes. Alternatives for facilitating third-party authorizations
currently necessitate the coordination between two or more domains to
synchronously set up selector/key DNS records, DNS zone delegations,
and/or the regular exchange of public/private keys.
Checking DKIM policies may occur when a From header email-address is
not within the domain of a valid DKIM signature. When a third-party
signature is found, TPA-Label transactions offer an efficient means
for Author Domains to authorize specific third-party signing domains.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-otis-dkim-tpa-label-02.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-otis-dkim-tpa-label-02.txt>
-
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