On 09/06/2020 18:33, Viktor Dukhovni via Exim-dev wrote: > Perhaps so, but in the context of everything else in RFC6125, and the > specs for other protocols, ... it is fairly clear (to me anyway) that > the intent is to match the SMTP server name prior to CNAME expansion, > just like the HTTP/IMAP/... cases.
Given that HTTP/IMAP don't do MX lookups, the argument-by-analogy is dubious. You could as easily use it to justify the first of my three options. I'm not saying I think you've chosen then wrong thing, only that the lawyering is weak. -- Cheers, Jeremy -- ## List details at https://lists.exim.org/mailman/listinfo/exim-dev Exim details at http://www.exim.org/ ##
