YouhaveanExchangeServer2010serverthathasIMAP4enabled.AllusersconnecttotheExchangeserverbyusinganIMAP4client.Youneedtoverifywhetheruserscansende-mailtotheInternetbyusingtheExchangeserver.Whatshouldyoudo？（）
A.Fromtheserver，runtheTest-ImapConnectivitycmdlet.
B.Fromtheserver，runtheTest-OutlookConnectivitycmdlet.
C.Fromaclient，attemptaconnectiontoTCPport143byusingTelnet.
D.Fromaclient，attemptaconnectiontoTCPport587byusingTelnet.
参考答案：D
