Yes, by using GPO;
http://www.howto-outlook.com/howto/policies.htm

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Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more

http://www.msoutlook.info/
Real World Questions, Real World Answers

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"Susan" wrote in message
news
Is it possible to restrict users from changing the Message Format
(Tools -
Options - Mail Format) in Outlook 2003? If so, how?