Hi cromwelld,
These instructions are for Outlook 2016, which is the most recent you can download from Office 365.
To add AdobePDF to your ribbon, right-click any of the items that do appear in your ribbon (Home, File, Send / Receive, etc). This will pull up a window with 2 columns, you want the "Customize the Ribbon" column on the right.
Under Main Tabs make sure that the box for Adobe PDF is checked.
With Outlook open:
- Select AdobePDF from the ribbon at the top (mine shows up next to Add-ins)
- There are 3 sections: Convert, Preferences, and Archive
- Select Change Conversion Settings from the Preferences section
- Block download of external content is the 2nd-to-last check-box
- Deselect it and hit OK
If you want to enable this for the web-browser version of Outlook then you might want to reach out to Microsoft support as they would be a better resource for their products.
Thank you. Miraculously, after I posted this the option showed up in the ribbon. May have been because I was playing around in the Adobe settings as well as the Outlook settings. Anyway, I was able to uncheck the block download option and it works perfectly! Thanks!