The infamous "Failed to get AAAA from MX or your DOMAIN" (resolved)

[jwise]

I, like some others, am tripping on the well-known 'Failed to get AAAA from MX or your DOMAIN' error.  This is surprising, since the previous test (sending mail) passed with flying colors.

I provided an e-mail address of 'joshua@nyus.compound.emarhavil.com'; 'host' provides the "right" results:

joshua@nyus:~$ host nyus.compound.emarhavil.com
nyus.compound.emarhavil.com has address 50.76.59.212
nyus.compound.emarhavil.com has IPv6 address 2001:470:1f05:c::
nyus.compound.emarhavil.com mail is handled by 10 nyus.compound.emarhavil.com.
joshua@nyus:~$ host 2001:470:1f05:c::
0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.c.0.0.0.5.0.f.1.0.7.4.0.1.0.0.2.ip6.arpa domain name pointer nyus.compound.emarhavil.com.

Any thoughts?  I wonder if it is tripping on the fact that emarhavil.com itself is not yet IPv6-ready.

Edit: I think I may have been the victim of my own impatience.  I suspect that there was still a DNS cached record somewhere.  Waiting another few hours cleared things up.