On Wed, 25 Mar 2009, John Levine wrote:
New:
A single domain name that identifies the agent or user on behalf
of whom the SDID has taken responsibility. For DKIM
processing, the name has only basic domain name semantics; any
possible owner-specific semantics is outside the scope of DKIM.
While I'd think it would be dandy if the i= were a domain name, I
suspect I'd be outvoted, so perhaps it would be better to say
something like this:
A string that identifies the agent or user on behalf of whom
the SDID has taken responsibility. The string has the syntax
of an e-mail address where the domain part is the same as the
SDID or a subdomain of the SDID. For DKIM processing, the AUID
has no semantics beyond validation that it complies with the
syntactic rules; any possible owner-specific semantics is
outside the scope of DKIM.
I'm fine with either form.
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