public function sendFeebackMessage(Feedback $feedback, $feedbackEmailFrom, $feedbackEmailTo)
    {
        $message = Swift_Message::newInstance();

        $message->setSubject($this->translator->trans('eZ Demobundle Feedback form'))
            ->setFrom($feedbackEmailFrom)
            ->setTo($feedbackEmailTo)
            ->setBody(
                // Using template engine to generate the message based on a template
                $this->templating->render(
                    'eZDemoBundle:email:feedback_form.txt.twig',
                    array(
                        'firstname' => $feedback->firstName,
                        'lastname' => $feedback->lastName,
                        'email' => $feedback->email,
                        'subject' => $feedback->subject,
                        'country' => $feedback->country,
                        'message' => $feedback->message,
                    )
                )
            );

        $this->mailer->send($message);
    }