Somewhat off-topic, but does anyone know what top-level domains are in practice "safe" to use for email addresses if we're going to migrate to our own domain? I mean "safe" in the sense of being unlikely to cause confusion or problems with less-than-well-written software (or humans). Obviously .com is okay, and I haven't heard of problems with .edu/.gov/.org/.net, but I'm a little afraid of getting a domain for email…
Maybe a bit, I don't think it is based in paranoia, you have technical reasons. Just recently had to strip tld from uri's, and boy was that harder then excepted!
That being said domains like co.uk, co.jp been around for a long time. I will stay away from "fancy .named" domains, but country level names should work fine.
Would love to hear other opinions as well.