What, specifically, are you having difficulty with NVDA reading (or not reading)? I have Outlook 2016 on my machine here at home along with NVDA and I can see if the issues exist here.
In the quick playing I've done with Outlook (both 2010 and 2016) and NVDA in the past they've played well together.
Brian - Windows 10 Home, 64-Bit, Version 1809, Build 17763
A great deal of intelligence can be invested in ignorance when the need for illusion is deep.
~ Saul Bellow, To Jerusalem and Back