It appears that Viktor Dukhovni via Exim-users <exim-us...@dukhovni.org> said: >That text is obsolete. There is no such text in RFC5321, and >CNAME-valued mail domains have long been OK. The sending MTA (its DNS >resolver) is expected to restart the MX lookup at the target of the >CNAME, and if no MX records are found, use the final A/AAAA records.
Huh, you're right. In my minor defense, the CNAME code was written in 1998, RFC 2821 was published in 2001, and as far as I can tell this is the first time in 20 years that I've sent to a CNAME'd domain that caused a problem. I'll go patch the code. Just wondering, I'm pretty sure I sent mail to this list in the past. Is the CNAME new? R's, John -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
