Co.uk email addresses not valid on user registration?

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This is a drupal question asked by thiokol on 30 October 2009

When registering a new user, any .co.uk email address is not valid.

“The e-mail address test@test.co.uk is not valid.”

Now, i’m assuming there is some sort of bug limited to my installation? If this is a bug in general then….well i’d be pretty speechless to be honest!

This is a new installation with a few contrib modules which I have used on several other sites with no problems, also using .com .net .org email addresses works fine.

Also I am not using email addresses already registered.

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