OP: Can you provide more information? What changes do you expect to get notified on? Do you have a way to reproduce the problem?
There are two attributes which control admin notifications. admin_immed_notify controls whether the admin is notified when a subscription (or unsubscription) request is held for moderator approval. admin_notify_mchanges controls whether the administrator gets a notification when a user is subscribed to the mailing list.
** Changed in: mailman Status: New => Incomplete