When you add rules to a space that already contains
  content, the rules are not applied to the existing content by default. You
  must reapply the rules to that space to ensure the existing content is
  included.
    - 
        Navigate to the space whose content rules you want to
        manage.
        
The space header displays the name and details of the space.
 - In the More Actions menu, click Manage Content Rules.
 - 
        In the More Actions menu of the
        Content Rules page, click Reapply
        Rules In Space or Reapply Rules in Space and
        Children.
        
You are notified when the rules have been reapplied.
 - Click Close to return to the current space.