You have an Exchange Server 2010 organization named Contoso.com.All users from your company have the @contoso.com email address suffix.You need to configure a public folder named Folder1 so that Internet users can post content by sending an e-mail to folder1@contoso.com. What should you do？（）

• A、Mail enable Folder1.
• B、Assign the author role to Anonymous.
• C、Create a new mail contact that has the e-mail address folder1@contoso.com， and then create a transport rule.
• D、Create a new mailbox that has the e-mail address folder1@contoso.com， and then create a transport rule.