You work as an IT engineer in an international company which is named WINTEL. You are in charge of the network of the company. You have a Windows Small Business Server (SBS) 2003 environment installed on a server named server1 in the network. Now you upgrade the (SBS) 2003 environment to a Windows Small Business Server (SBS) 2008 environment to meet the business requirements. Then you are assigned a task to verify that Internet e-mail can be received successfully after the upgrade. What should you do to accomplish this task?

A.
In order to accomplish this task, you need to connect to Outlook Web Access and send a message internally.

B.
In order to accomplish this task, you need to obtain the public fully qualified domain name (FQDN) of your mail server by using the NSLOOKUP command-line tool.

C.
In order to accomplish this task, you need to run the Configure a Smart Host for Internet e-mail task.

D.
In order to accomplish this task, on an external computer, use the TELNET command-line tool to send a test message, and then use the Exchange Message Tracking tool.

E.
In order to accomplish this task, you need to connect to Outlook Web Access and send a message internally and then use the Exchange Message Tracking tool.