YouinstallanewExchangeserver2010organizationthatcontainstwoHubTransportserversnamedHub1andHub2.Hub1andHub2areconfiguredasmailserversforyourorganizationinthepublicDNSzone.YounoticethatHub2rejectsallSMTPconnectionsfrominternethosts.WhatShouldyoudo？（）
A.UninstalltheantispamagentsfromHub
B.InstallthesametrustedpubliccertificateonHub1andHub2.
C.ModifythepermissionsfortheClientHub2Receiveconnector.
D.ModifythepermissionsfortheDefaultHub2Receiveconnector.
参考答案：D
