Deletes all of the items in the specified folder (for a Trash folder only).
Specifies the ID of the DRN of the Trash folder.
Specifies the context identifier for this user’s session.
Returns the same items as Folder.Open. If Folder.count is 0, there are no items.
/servlet/webacc? User.context=xyz&action=Folder.Empty& Folder.id=1