private function getEmailHtml()
    {
        return $this->app['twig']->render(
            'email/pingtest.twig',
            [
                'sitename' => $this->app['config']->get('general/sitename'),
                'user'     => $this->options['user']['displayname'],
                'ip'       => $this->options['ip'],
            ]
        );
    }