I'm using Outlook Mac 2011 on OSX 10.9.5, and I cannot figure out how to see when an invitation was sent. The event invitation doesn't have the 'Sent' field like a normal email does. I tried looking through all of the menus (File, Edit, View, etc.) at the top of the screen to get more details but couldn't find anything.
How do I view the timestamp of when a meeting invitation was sent?