You work as the enterprise exchange administrator at Xxx .Xxx is using Microsoft Exchange Server 2010 as their messaging solution.What actions must you take to allow your environment to utilize the wildcard certificate so that it can be utilized for Outlook Anywhere？（）

• A、You must change recipient filtering.
• B、You must change the DNS forwarding.
• C、You must change the Outlook Protection Rules.
• D、You must change the EXPR Outlook Provider’s properties.