You have a hosted Exchange organization. All servers in the organization have Exchange Server 2010 Service Pack 1 (SP1) installed.
You have a user named User1 and a user named User2.
You need to ensure that User1 can add User2 to the From field when he sends email messages. Messages that have User2 in the From field must display only User2 as the message sender to recipients who receive the messages.
What should you use?
A. Microsoft Outlook.
B. Exchange Management Console (EMC).
C. Active Directory Users and Computers.
D. Exchange Control Panel (ECP).
