Email address is invalid

My usual email address is my own domain (ie:, but this is rejected by the Register page as invalid. Is this a bug & is it likely to be fixed? I’ve had to sign up with an old defunct email address just to be able to post on the forums, I don’t want to have to use that (or create a whole new email address just for AskMrRobot) in order to use the site.

For account-related issues, contact us directly via the contact form, and we can try to resolve this issue for you. You will get a response within 24 hours, but I’ll tell our person to keep an eye out for an email from you sometime today to hopefully get it handled sooner.

Thank you, I’ve done that now.