private function sendNotificationEmail(NotificationInterface $notification)
 {
     if (null === $notification->getMailTemplate()) {
         $notification->setMailTemplate($this->notificationHandler->getEmailHtml($notification));
     }
     $this->mailer->sendEmailBasedOnNotification($notification->getId(), $notification->getCategory()->getMailSenderAddress(), $notification->getPerson()->getEmail(), $notification->getTitle(), $notification->getMailTemplate());
 }