Nextras\MailPanel\FileMailer::readMail PHP Метод

    private function readMail($path)
    {
        $content = file_get_contents($path);
        if ($content === FALSE) {
            throw new \RuntimeException("Unable to read message stored in file '{$path}'");
        }
        $message = unserialize($content);
        if (!$message instanceof Message) {
            throw new \RuntimeException("Unable to deserialize message stored in file '{$path}'");
        }
        return $message;
    }