Your email validation code is too strict. From Wikipedia: The local-part of the e-mail address may use any of these ASCII characters: Uppercase and lowerc

Your email validation code is too strict. From Wikipedia: The local-part of the e-mail address may use any of these ASCII characters: Uppercase and lowercase English letters (a–z, A–Z) Digits 0 to 9 Characters ! # $ % & ' * + - / = ? ^ _ ` { | } ~ Character . (dot, period, full stop) provided that it is not the first or last character, and provided also that it does not appear two or more times consecutively (e.g. John..Doe@example.com).