Bill(_dot_)Oxley(_at_)cox(_dot_)com wrote:
A domain is a public IP Class or Address assigned by a
registrar to an individual or company.
Not all domains have an IP, some even have no MX. They
might still send or receive a message/rfc822 somehow.
Sending domain is the IP Class or Address that sent the
message.
Keith's term MON (mail originating network) is IMO better.
Receiving domain is the IP Class or Address that is
considering accepting the message.
For that he proposed MRN (r = receiving). Dave has this
apparently as 'MHS with the "Dest" role' in mail-arch-04.
Mail Systems are not really part of the discussion at
any point
Somehow the message/rfc822 is transported, and there are
normative references to 2821 in 2822. 'Receiving domain'
is dubious. 'MHS with the "Dest" role' is clumsy (out of
its context, where such details are improtant), now you
don't like 'mail systems', but I don't get why:
Certainly DKIM is for software doing something with mail
(or more precisely message/rfc822). How about 'MHS' as
defined in mail-arch-04: "mail handling service". Bye
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