A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : DKIM Third-Party Authorization Label
Author(s) : L. header, et al.
Filename : draft-otis-dkim-tpa-label-05.txt
Pages : 35
Date : 2010-06-27
A third party authorization label (TPA-Label) is a DNS-based
extension for DKIM ADSP records that allow domains in the From header
to authorize acceptable third-party signatures. This approach allows
autonomous and unilateral authorizations for a range of third-party
domains using scalable, individual DNS transactions. The extended
scope of DKIM signing practice assertions supplants more difficult to
administer transparent authorization schemes. Alternatives for
facilitating third-party authorizations currently necessitate
coordination between two or more domains to synchronously set up
selector/key DNS records, DNS zone delegations, and/or a regular
exchange of public/private keys.
Checking TPA-Label Resource Records for signing practices may
infrequently occur when a message is not compliant with restrictive
ADSP policies, where an Author Domain Signature is either missing or
invalid. When a third-party signature is found, TPA-Label Resource
Record transactions offer an efficient means for Author Domains to
authorize specific third-party signing domains. Recipients are
afforded a method to determine whether authorization exists in
situations where other modes of authorization are impractical. TPA-
Label Resource Records permit Author Domains a means to selectively
influence message handling, for messages otherwise lacking valid
Author Domain signatures.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-otis-dkim-tpa-label-05.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-05.txt>
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