Your company has an Office 365 subscription. You need to add the word “External” as a prefix to the subject line of each email message received by users from external senders.What should you do?

A. In the Microsoft Forefront Online Protection for Exchange (FOPE) Administration Center, set the footer for outbound email.
B. Run the Enable-InboxRule Windows PowerShell cmdlet.
C. In the Microsoft Exchange Control Panel, create a MailTip.
D. In the Microsoft Exchange Control Panel, run the New Rule Wizard.

Correct Answer: D