1title.gettext restricted to subscribers
2
3is_subscriber([listname],[sender])      smtp,dkim,md5,smime  -> do_it
4is_owner([listname],[sender])           smtp,dkim,md5,smime  -> do_it
5is_editor([listname],[sender])          smtp,dkim,md5,smime  -> do_it
6is_listmaster([sender]     )            smtp,dkim,md5,smime  -> do_it
7true()                                  smtp,dkim,md5,smime -> reject(reason='tracking_subscriber')
8