If you wish to edit the Notifications sent to DocBoxes, you can edit Subscriptions.
To edit Subscriptions in Manage Subscriptions right-click on the Subscription and select Edit Item in the context menu.
Edit the fields in the pop-up window and select Save to finalize changes to the Subscription, including Delete Item (removes the subscription).
The subscription can also be deleted directly from the Items ribbon that appears when the subscription is selected.