On 3/17/10 10:36 AM, Jeff Macdonald wrote: > If "or the more specific identity i= tag" was removed from the above > definition, would everyone agree that is the proper definition of a > third-party signature? That would mean: > > From: f...@example.com > DKIM-Signature: ... d=i.example.com > > would be considered a third-party signature. > d=bar.example.com is unable to add a valid "author domain" signature for f...@example.com. There would be no hierarchical authority permitted, otherwise. See section 2.7 of RFC 5617.
One might want to equate Author Domain signatures with "first party" signatures, and all others as "third party". Even d=example.com is unable to add a valid "author domain" signature for f...@bar.example.com. It does not seem logical to describe signatures as third-party when higher within the hierarchy than the author domain. 2.7. Author Domain Signature An "Author Domain Signature" is a Valid Signature in which the domain name of the DKIM signing entity, i.e., the d= tag in the DKIM- Signature header field, is the _same_ as the domain name in the Author Address. Following [RFC5321], domain name comparisons are case insensitive. -Doug _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
