Configure sigstripping

include/options/display.php

@@ -282,6 +282,13 @@ function load_optpage_data_display() {
         'refresh' => SMOPT_REFRESH_NONE
     );
 
+    $optvals[SMOPT_GRP_MESSAGE][] = array(
+        'name'    => 'strip_sigs',
+        'caption' => _("Strip signature when replying"),
+        'type'    => SMOPT_TYPE_BOOLEAN,
+        'refresh' => SMOPT_REFRESH_NONE
+    );
+
     $optvals[SMOPT_GRP_MESSAGE][] = array(
         'name'    => 'internal_date_sort',
         'caption' => _("Enable Sort by of Receive Date"),