Allow subscriptions to…

By default, users can specify either a document or a folder when creating a subscription. If they specify a document, the subscription will produce update email regarding only that document. If they specify a folder, the subscription will produce update email regarding all documents in that folder.

The default selection, Folders and Documents, allows either type of subscription.To limit activity on the Office-extended server and mail server, you may want to only allow subscriptions to documents. Select Documents only to prevent user subscriptions to folders.

You may want to disable folder subscriptions because:

Important Enabling folder subscriptions will reveal document names and changes that are taking place on documents that users may not have permission to access.

However, the advantages of enabling folder subscriptions include: