YouhaveahostedExchangeorganization.AllserversintheorganizationhaveExchangeServer2010ServicePack1（SP1）installed.YouneedtopreventausernamedUser1fromusingOutlookWebApp（OWA）toaccesshismailbox.Whatshouldyoudo？（）
A.FromthepropertiesofUser1’smailbox，modifythemailboxsettings.
B.FromthepropertiesofUser1’smailbox，modifythemailboxfeatures.
C.CreateanewOWAmailboxpolicy.
D.ModifythedefaultOWAmailboxpolicy.
参考答案：B
