You can add voting buttons to an email message while you’re composing it.
In a new message window, click the Options tab.
Click the Use Voting Buttons button.
This menu contains a few default voting options. If “Approve / Reject”, “Yes / No”, or “Yes / No / Maybe” work for you, select one of those. Otherwise, you can fill in your own responses.
Select from the default responses, or select Custom.
The Properties window opens. In the Voting and Tracking options group, Use voting buttons is already selected, so we just need to fill in our options.
Enter the responses you want to use in the text field next to the Use voting buttons heading.
Make sure that each choice is separated by a semicolon.
Click Close.
Complete the message and click Send.
The message is sent. When the recipients open the message, the choices you specified will be available to vote on.