Notifications
To help keep track of what's going on with your group, you can opt-into receiving notifications to do with all aspects of the group. Keep track of members joining or leaving, messages been sent or deleted, and even get notified whenever there's a delivery failure to one of your members.
You head over to the Notifications area of your group to start receiving them.
All notifications can be configured to be received immediately by email, in a scheduled digest, or both. You can configure how often you want to receive the digest, from every hour to once a week, at the bottom of your notification settings.