Sams Teach Yourself Microsoft Office Outlook 2003 in 24 Hours

I have an add-in that worked perfectly in older versions of Outlook. Now it triggers the dialog seen in Figure 8.1 when I use it.

Check the add-in's Web site for a newer version. There were some minor updates to the object model security and the developer must update his program to avoid the security prompts.

Can I send email with restricted permissions to someone who doesn't use Outlook 2003?

Yes, you can restrict permissions to anyone . She'll need to install the Internet Explorer Rights Management client add-in to read the protected content if she doesn't use Outlook 2003. The Internet Explorer add-in is available at Windows Update.