s-ichikawa / laravel-sendgrid-driver

     */

    protected function setSmtpApi(&$data, Swift_Mime_Message $message)

    {

        foreach ($message->getChildren() as $attachment) {

            if (!$attachment instanceof Swift_Image

                || !in_array(self::SMTP_API_NAME, [$attachment->getFilename(), $attachment->getContentType()])

            ) {

                continue;

            }

            $data['x-smtpapi'] = json_encode($attachment->getBody());

        }

    }

}

        $this->numberOfRecipients = 0;

        $smtp_api = [];

        foreach ($message->getChildren() as $attachment) {

            if (!$attachment instanceof Swift_Image

                || !in_array(self::SMTP_API_NAME, [$attachment->getFilename(), $attachment->getContentType()])

            ) {

                continue;

            }

            $smtp_api = $attachment->getBody();

        }

        if (!is_array($smtp_api)) {

            return $data;