Outlook has no feature to set that as a default.

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx

"Kelvin" wrote in message ...
How do you automatically save as Outlook Message Format for each email you
want to save? Thank you.

Kelvin.