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單項選擇題

You have an Exchange Server 2010 server that has IMAP4 enabled.All users connect to the Exchange server by using an IMAP4 client.You need to verify whether users can send e-mail to the Internet by using the Exchange server.
What should you do?()

A.From the server, run the Test-ImapConnectivity cmdlet.
B.From the server, run the Test-OutlookConnectivity cmdlet.
C.From a client, attempt a connection to TCP port 143 by using Telnet.
D.From a client, attempt a connection to TCP port 587 by using Telnet.

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