You can be notified via email of activity in your workspaces.
To change your preferences for this feature, navigate to the settings screen. To get to the settings screen click on your name in the Onehub bar at the top.
Once you are on the settings screen, click on Notifications. Select how often you would like to be notified from the menu. To change which workspaces and which types of activity you get emailed about click on Filters by Workspace or Filters by Type on the right.
Note: Email notifications are enabled by default to be sent daily for each workspace you are a member of. They are only sent if activity has occurred.