Note: These procedures work only if you use HTML as your message format. To learn how to use HTML as the message format, see: How do I change the format of all my new messages to HTML?
Apply Outlook stationery and themes to all messages
Click the File tab.
Click Options.
Click Mail.
Click Stationery and Fonts.
On the Personal Stationery tab, click Theme.
Note: If you try this procedure without HTML as your message format, the message Themes are not installed appears.
Under Choose a theme, click the theme or stationery that you want and then click OK.
Select the font options that you want to use.
How do I change the format of all my new messages to HTML?
Click the File tab.
Click Options.
Click Mail.
Under Compose messages, in the Compose messages in this message format list, click HTML.
Apply Outlook stationery and themes to a single message
Click the Home tab.
In the New group, click New Items, point to Email Message Using, and then click More Stationery.
Under Choose a Theme, click the theme or stationery that you want and then click OK.
Compose and send your message.
Turn off Outlook stationery and themes
Click the File tab.
Click Options.
Click Mail.
Under Compose messages, click Stationery and Fonts.
On the Personal Stationery tab, click Theme.
Under Choose a Theme, click (No Theme).