public function deleteLog(Request $request, $mailLog)
    {
        // Not Found
        if (null === $mailLog && !$request->request->has('id')) {
            $this->addFlash('error', 'sorry_not_existing');

            return $this->redirectToRoute('admin_mail_logger');
        }

        // Convert Array
        $mailLog = $request->request->has('id') ? $request->request->get('id') : [$mailLog];

        // Remove Mail Log
        if ($mailLog) {
            $em = $this->getDoctrine()->getManager();
            $em->createQueryBuilder('')
                ->delete($this->getParameter('pd_mailer.mail_log_class'), 'log')
                ->add('where', $em->getExpressionBuilder()->in('log.id', ':logId'))
                ->setParameter(':logId', $mailLog)
                ->getQuery()
                ->execute();
        }

        // Redirect Back
        return $this->redirect($request->headers->get('referer') ?? $this->generateUrl('admin_mail_logger'));
    }