You have an Exchange Server 2007 environment. You need to prevent your users from sending e- mail messages that contain sensitive financial information to recipients outside your company. What should you do?
A.
Create a journal rule that applies only to all internal users
B.
Create a journal rule that applies only to all external users
C.
Create a journal rule that applies to internal and external users
D.
Create a transport rule that applies to all messages from external users
E.
Create a transport rule that applies to all messages to external users