public function email(array $config = [])
    {
        $result = $this->emailInternal($config);
        $statusCode = (int)$result['statusCode'];
        
        if ($statusCode >= 200 && $statusCode < 300) {
            return $this->getResultAsArrayWithoutStatusCode($result);
        }
        
        $this->reportUnexpectedResponse($result, 1503511660);
    }