Outlook 2010: Prevent Other Outlook Recipients from Forwarding, Printing, or Copying Content from Your Message
Contributed by shamanstears 
August 24, 2009 
Tagged: Microsoft Outlook
If you are sending out an email message to a contact and prefer that it isn’t forwarded to someone else, printed, or any of the content copied, Outlook 2010 allows you to do this by following these steps.
First, you need to sign up for Microsoft’s Information Rights Management (it’s free)
1. Go to the Ribbon and click New E-mail to compose a new message.
2. Go to the Ribbon, find the Permission section.
3. Click the Permission button.
4. The Service Sign-Up window will appear, select the Yes, I want to sign up for this free service from Microsoft radio button.
5. Click the Next button.
6. You will need a Windows Live ID to use this service, if you have on select the Yes, I have a Windows Live ID radio button. (if not, select the No, I want to register for a Windows Live ID now radio button. This will take you to a page to sign up for a Windows Live ID.)
7. Click the Next button.
8. Input the credentials to sign into Windows Live.
9. Select the proper radio button identifying whether you are using a private or a public computer.
10. Click the I accept button.
11. Click the Finish button.
To Mark a New Message as Do Not Forward:
1. Go to the Ribbon and click New E-mail to compose a new message.
2. Go to the Ribbon, find the Permission section.
3. Click the arrow beneath the Permission button.
4. Select Do Not Forward from the resulting menu.
5. Compose your email as usual and send it.
Recipients using Outlook will not be able to forward, print or copy content from the message.