I don't think adding the TLD is really what should be looked at here. Please consider just making the suggestion not overlay the password box. It should be a suggestion, not a block.

You need to rethink your approach to TLDs, in my opinion. I got suggested to switch to a .me when I entered a perfectly valid .re ending.

Add .nl as well, it suggested .net when it was already showing my gravatar.

This brings interesting logic here: if the email gives a valid gravatar, then it's probably a valid email, hence 'did you mean' should probably not be shown.

Add .rs too. :)

Add .dk too