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單項選擇題

You have an Exchange 2010 Edge Transport server named Server1.You discover that you cannot receive e-mail from an organization that uses the contoso.com domain name.You examine the server logs and discover that the contoso.com servers are configured as open SMTP relays.You need to ensure that the Edge Transport server can receive e-mail from contoso.com.What should you do?()

A.Create an IP Allow List entry
B.Create an address rewrite entry
C.Configure the properties of the Sender ID feature
D.Configure the properties of the sender filtering feature

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