Test email validation

You may edit the test regular expression; the CATS regex is shown for your reference. Your edits will be immediately available for testing.

Test regex/^([a-z0-9]+([+-.!=_][a-z0-9]+)*)\@(([a-z0-9\-])+\.)+([a-z0-9]{2,4})$/i CATS regex/^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/

If you find a regex you like, please cut and paste it and the results into an email and send 'em to Jon Plummer. The idea here is to find a minimal regex that passes obviously valid email addresses, fails obviously invalid email addresses, and does not pass addresses that CATS wouldn't like.