checks that a mail meets all the requirements

validateMail.java

/*
 *  validateMail:	checks that a mail meets all the requirements
 * @param   mail: 	a string with the ail that you want to check
 * @return  true:	meet the requirements
 * @return false:   doesn't meet the requirements
 */
public static boolean mailValidator(String email) {
	boolean valid = false;
	Pattern pattern = Pattern.compile("^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
		+ "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$");
	if (email != null) {
		Matcher mather = pattern.matcher(email);
		if (mather.find())
			valid = true;
	}
	return valid;
}