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YouhaveanExchangeServer2010organization.AnEdgeTransportserversendsandreceivesalle-mailmessagesfromtheInternet.YounoticethatsomeserversontheInternetidentifye-mailmessagesfromyourorganizationasspam.Youneedtominimizethepossibilitythate-mailmessagessentfromyourorganizationareidentifiedasspam.Whatshouldyoudo?()
A.ImplementMicrosoftForefrontSecurityforExchangeServer.
B.CreateSenderIDTXTrecordsfortheEdgeTransportservers.
C.ConfiguretheEdgeTransportserverstouseareal-timeblocklist(RBL).
D.Installaservercertificatefromatrustedthird-partycertificationauthority(CA).