InanorganizationwithExchangeServer2010existsEdgeTransportServernamedServerApartnerorganizationhasExchangeServer2010EdgeTransportServernamedServer2.YouneedtoencryptSMTPcommunicationbetweenServer1andServer2.Thesolutionmustensurethatbothserversuseatrustedcertificate.Whatshouldyoudo？（）
A.EnableDomainSecurityAuthorization
B.EnableExchangeServerAuthorization
C.EnableExternallySecuredAuthorization
D.Disableanonymoususerspermissiongroup
参考答案：A
