On: ICANN bans dotless domains

[RyJones]

Vatican City (http://www.va/) used to have MX records pointing at va directly (so, pope@va or whatever)

[rdl → RyJones]

So did .ai., at least for certain people (or maybe it was just the A record, but A records are enough for mail deliverability in the absence of an MX). I had one, back when I lived next to the .ai. registrar on Anguilla and shared his (very expensive) T1 via 10base2 ethernet.

[mrb → RyJones]

Ukraine (.ua) has an MX record on the TLD. So user@ua is a valid address.

[guan → RyJones]

As far as I can tell they still do:

va. 3600 IN MX 100 raphaelmx3.posta.va. va. 3600 IN MX 10 raphaelmx1.posta.va. va. 3600 IN MX 10 raphaelmx2.posta.va.

[lostlogin → RyJones]

If that's his email it must be irritating getting all the old popes mail.

Edit: Delivery to the following recipient failed permanently:

    pope@va