Please use example.com

If you've come here, it's probably because someone filled out a form with an "@aoeu.com" address. Just like folks using the traditional QWERTY keyboard tend to lie and use "@asdf.com" addresses because it's easy to type (all letters on the left hand), users of the Dvorak keyboard do this too, resulting in "@aoeu.com".

If you really do need to create a fake email address, you should use the officially blessed example addresses, which are guarenteed to be used by no one. These include

Yes, someone owns aoeu.com, asdf.com, nobody.com, none.com, and other frequently 'fake' email domains. Stop being a pain to the legitimate owners of those domains, and use the example.{com,org,net,edu} versions instead.