You may mark individual mail messages as private or publicly available in the following way:
· Bring up the Mail property sheet by clicking on the received mail item or sent mail item in the Mail window using the right mouse button and selecting Edit from the context menu.
Select the Access page. Select either the Public or Private radio button as appropriate and press OK to save your changes.
When you send a mail message, you may specify whether or not it will be private or public in the following way:
· Compose the message in the normal way and then press the 
button. The Send Mail dialog box is displayed. Select the Access page.
Select either the Public or Private radio button as appropriate and press Send. Note that if you send the message by pressing Ctrl+S, you will not be given the chance to change the default setting.