catch all errors in msg sending

src/Controller/ComplaintController.php

@@ -2,6 +2,7 @@
 namespace App\Controller;
 
 use App\Form\AnonymousComplaintType;
+use Error;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Annotation\Route;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
@@ -48,7 +49,7 @@ class ComplaintController extends AbstractController
             $log->debug($mailer->send($email)->toString());
             return true;
         }
-        catch (TransportExceptionInterface $e)
+        catch ( Error $e)
         {
             return false;
         }