[Outages-discussion] Mixed Case of.mil MX Servers?

[Jim Popovitch]

On Mon, Oct 27, 2014 at 7:58 PM, Jeremy Chadwick via Outages
<outages at outages.org> wrote:
> Is it possible for someone to provide output from something like
> "dig mx navy.mil. +trace" ?

Here's some relevant bits of interest from USA and EU queries in which
I see 3 different cases for the word "navy"  (nAVy, naVy, nAvy) (also:
.MIL and .miL).  What's up with the case sensitivity?

Atlanta:
MX 20 sec-jeemsg.eemsg.mail.MIl. from server 199.252.180.234 in 30 ms.
MX 30 mx14.nmci.nAVy.MIl. from server 199.252.180.234 in 30 ms.
MX 30 mx13.nmci.nAVy.MIl. from server 199.252.180.234 in 30 ms.
MX 10 pri-jeemsg.eemsg.mail.MIl. from server 199.252.180.234 in 30 ms.
MX 30 mx15.nmci.nAVy.MIl. from server 199.252.180.234 in 30 ms.

Seattle:
MX 10 pri-jeemsg.eemsg.mail.miL. from server 199.252.155.234 in 80 ms.
MX 20 sec-jeemsg.eemsg.mail.miL. from server 199.252.155.234 in 80 ms.
MX 30 mx15.nmci.naVy.miL. from server 199.252.155.234 in 80 ms.
MX 30 mx14.nmci.naVy.miL. from server 199.252.155.234 in 80 ms.
MX 30 mx13.nmci.naVy.miL. from server 199.252.155.234 in 80 ms.

Netherlands:
MX 30 mx13.nmci.nAvy.miL. from server 199.252.154.234 in 20 ms.
MX 30 mx15.nmci.nAvy.miL. from server 199.252.154.234 in 20 ms.
MX 20 sec-jeemsg.eemsg.mail.miL. from server 199.252.154.234 in 20 ms.
MX 10 pri-jeemsg.eemsg.mail.miL. from server 199.252.154.234 in 20 ms.
MX 30 mx14.nmci.nAvy.miL. from server 199.252.154.234 in 20 ms.

-Jim P.