Enabled special mailbox hook for spam folder.

plugins/filters/setup.php

@@ -120,7 +120,7 @@ function squirrelmail_plugin_init_filters() {
         $squirrelmail_plugin_hooks['right_main_after_header']['filters'] = 'start_filters';
     }
     $squirrelmail_plugin_hooks['optpage_register_block']['filters'] = 'filters_optpage_register_block';
-#    $squirrelmail_plugin_hooks['special_mailbox']['filters'] = 'filters_special_mailbox';
+    $squirrelmail_plugin_hooks['special_mailbox']['filters'] = 'filters_special_mailbox';
     $squirrelmail_plugin_hooks['rename_or_delete_folder']['filters'] = 'update_for_folder';
     $squirrelmail_plugin_hooks['webmail_bottom']['filters'] = 'start_filters';
 }