The best way to manage and administer your whole Exchange organization is to use the Administrator program that comes with Exchange. With the Administrator Program you can view all the various elements of your organization and make all the changes you think necessary.
Containers are objects that contain other types of objects.
The Container objects can be viewed in both the left and right panes of the program. Recipients are objects that can receive email. A mailbox is a type of recipients. Recipients and other non-container types of objects only show up in the right hand side pane of the administrator program. Three of the menu choices offered in the administrators program are unique to Exchange and are used to display specific information.