[DropInIn]

Maybe have thier email system do a check for a tld matching that and send a verification email before sending, just to make sure they aren't blocking legit email delivery?

Because I can see some serious shortcomings in your proposal right off the bat...

[martinflack]

It's not just a question of whether it makes a legit TLD; it's also whether military personnel should have any reason to send email there from a given system.