do not overflow.

use horizontal scrollbars instead.

data/web/css/mailbox.css

@@ -9,7 +9,7 @@ table.footable>tbody>tr.footable-empty>td {
   overflow: visible !important;
 }
 .table-responsive {
-  overflow: visible !important;
+  overflow: auto !important;
 }
 @media screen and (max-width: 767px) {
   .table-responsive {