move header block inside loop

program/steps/settings/func.inc

@@ -1261,14 +1261,15 @@ function rcmail_user_prefs($current = null)
             unset($sections[$idx]);
         else
             $sections[$idx]['blocks'] = $data['blocks'];
-    }
 
+        // allow plugins to add a header to each section
         $data = $RCMAIL->plugins->exec_hook('preferences_section_header',
                                             array('section' => $sect['id'], 'header' => '', 'current' => $current));
 
         if(!empty($data['header'])) {
             $sections[$idx]['header'] = $data['header'];
         }
+    }
 
     return array($sections, $plugin['cols']);
 }