Index: spam.module
===================================================================
--- spam.module	(revision 244)
+++ spam.module	(working copy)
@@ -809,10 +809,14 @@ function spam_admin_settings_form_submit
   }
   variable_set('filter_types', implode(',', $filter_types));
   if ($form_values['op'] == t('Reset to defaults')) {
+    variable_del('spam_visitor_action');
+    variable_del('spam_filtered_message');
     variable_del('spam_threshold');
     variable_del('spam_log_level');
   }
   else {
+    variable_set('spam_visitor_action', $form_values['spam_visitor_action']);
+    variable_set('spam_filtered_message', $form_values['spam_filtered_message']);
     variable_set('spam_threshold', $form_values['spam_threshold']);
     variable_set('spam_log_level', $form_values['spam_log_level']);
   }