To stop using stationery and themes in the e-mail messages that you create, you can turn them off.
If you don't want messages that you receive from other people to display stationery or themes, see Remove stationery and themes from messages you receive.
From the main Outlook window, on the Tools menu, click Options, and then click the Mail Format tab.
Click Stationery and Fonts.
On the Personal stationery tab, click Theme.
Under Choose a theme, click No theme, and then click OK three times to close the dialog boxes.