【单选题】
.In an Exchange Server 2010 Organization， exists an Edge Transport Server named Edge 1.All e-mail messages to the internet are sent from Edge 1.You need to prevent all members of a group named Group 1 from sending e-mail messages to internet.Your solution must provide a custom NDR message to the users when they send an e-mail message to internet. What should you create？（）
A、Mail tip and a Transport rule
B、Mail tip and a remote and a send connector
C、A custom delivery status notification message and a transport rule
D、A custom delivery status notification message and a send connector
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