I went to this link, and it says "go to file" but I don't have "file" (only Macs do) see photo help!
for outlook 2010 I discovered this: In Outlook 2010, go to File > Options > Trust center > Trust Center Settings > Macro Settings Ensure "Notification for all macros" is selected. Then, go to File > Option > Add-ins At the bottom of the page in-front of "Manage" choose "COM add-ins" and click go. Check the box next to "Evernote.Outlook" and hit OK, then OK again. Right click on any email and you should see "Add to Evernote". If that doesn't work, I suggest you send in a ticket to Evernote