Why can't I share this presentation through the Outlook plugin?

To share presentations through the Outlook Plugin, the Presentation will need the following settings enabled:

1. On the Options tab, under the Allow Viewers to section, ensure that the  E-mail invitation to view presentation box is checked. 
2. On the Security tab, ensure that Presentation is active is checked.
3. On the Security tab, uncheck the two boxes below:
   • Hide content from search
   • Presentation is only available for personalizing content (presentation is not visible to other users)
4. Make sure to Save/Apply your changes once complete.

Additional Training 

How to Add Brainshark to Outlook