A.FromtheExchangeControlPanel（ECP），configureaMailTip.
B.FromtheExchangeManagementConsole（EMC），createatransportrule.
C.FromtheExchangeManagementShell，runtheSet-TransportConfigcmdlet.
D.FromtheExchangeManagementShell，runtheNew-SystemMessagecmdlet.
参考答案：B
