When you receive an email message that contains voting buttons, you can quickly respond to the sender's request for a vote.
Note: This feature does not work with Exchange Active Sync accounts, such as Outlook.com.
To vote, do one of the following:
In the Reading Pane, click the InfoBar, and then click your choice.
Open the message, and click Home. In the Respond group, click Vote, and then click your choice.
You are prompted to choose whether you want to include a message together with your vote before the response is sent.