You work as an IT engineer in an international company which is named WINTEL. You are in charge of the network of the company and you install Windows Small Business Server (SBS) 2008 on a sever which is named server1 in the network. Some users complain that expected email messages are not delivered to them on time and sometimes users even cannot receive messages. As the IT support, you have to identify the reason for the delayed e-mail messages. So what action should you perform?

A.
In order to find out the reason, you should generate a Summary Network Report in the Windows SBS Console.

B.
In order to find out the reason, you should generate a Detailed Network Report in the Windows SBS Console.

C.
In order to find out the reason, you should use the Database Troubleshooter in the Exchange Management Console.

D.
In order to find out the reason, you should use the Mail Flow Troubleshooter in the Exchange Management Console.

E.
In order to find out the reason, you should use the Performance Troubleshooter in the Exchange Management Console.