On Sat, Mar 29, 2025 at 09:18:38AM -0400, John C Klensin wrote:
> > client-server in the example then
> > "they only authenticate one server to another
> > that does not sound perfectly aligned.
>
> Good catch. The source of the problem is that we've got some of
> those extensions that help assure a client that it is talking to the
> right server and others (or variations on the same ones) that try to
> assure servers about the legitimacy or authenticity or the client or
> the incoming message. Speaking as author/editor, if we can agree
> that this is an editorial problem, rather than a substantive one for
> which specific consensus is needed, I'll try to figure out how to
> adjust the wording without making it much more complicated. If we
> cannot reach that agreement, it is not clear to me that an
> improvement is worth further holding up the document (and, at least
> indirectly, progress on the A/S) for another round of Last Calls and
> impassioned discussions.
SMTP (as opposed to SUBMIT) is a server-to-server (MTA-to-MTA) protocol,
in which one MTA (server) is the SMTP client and another MTA (server) is
the SMTP server. So some fluidity of the terminology is not entirely
unexpected.
--
Viktor.
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