You need to design a security strategy for a remote e-mail access. What should you do？（）

• A、Require remote users to access e-mails by using Outlook Mobile Access
• B、Require Outlook Web Access users to install the secure MIME ActiveX-Control and to encrypt all messages
• C、On Outlook Web Access servers that accept connections from the Internet configure IIS to require SSL for all connections
• D、On Outlook Web Access servers that accept connections from the Internet configure IIS to require Integrated Windows Authentication