In article <d8e01199-1ead-f53f-7594-741e17a47...@jetlan.com> you write: >>> If a domain has no MX record, do all servers deliver to an AAAA record, >>> as required by (at least) RFC3974, > >You'd expect, No MX record, no mail delivery. MX is related to >hostname, not the transport stack.
Only if you'd never read RFC 5321, particularly section 5.2. Every v6 MTA of which I am aware will fall back to both AAAA and A if there is no MX. I had a long argument about this in the IETF making all the points people here else did and I lost, on the basis that it's too late to change SMTP now. _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
