protected function verify_email()
{
if ($this->field_config['required'] && !$this->field_value) {
self::setInputError($this->field_name);
}
if (preg_check("/^[-0-9A-Z_\\.]{1,50}@([-0-9A-Z_\\.]+\\.){1,50}([0-9A-Z]){2,4}\$/i", $this->field_value)) {
return $this->field_value;
}
return FALSE;
}