code: public function checkEmailAction()
      {
          $session = $this->get('session');
          $email = $session->get(static::SESSION_EMAIL);
          $session->remove(static::SESSION_EMAIL);
  
          if (empty($email)) {
              return new RedirectResponse($this->get('router')->generate('miky_app_customer_resetting_request'));
          }
  
          return $this->render('MikyUserBundle:Frontend/Resetting:checkEmail.html.twig', array(
              'email' => $email,
          ));
      }
docs: Tell the user to check his email provider