We are doing testing on a 15 user Sage 300 2020 install. The workstations are using 32 bit office 2016 (not office 365) and 64bit windows 10 Pro. 

The programs and company data are on a network share (i.e. not a local install). 

One workstation has no problem launching outlook when you set the printer destination to email, but other workstations have various problems where it either launches outlook compose message screen, but crashes right after the send, or gives the "email setup in company tab" message if outlook is already running. 

I re-ran the workstation setup, checked to make sure outlook 2016 was the default mail client, repaired office and do not know where to go from here. 

The old accpac version 6 which is running on windows 7 workstations launches the outlook compose message windows correctly. 

I noticed some old forum messages going back to 2017 at least but they didn't propose a definitive solution. 

I need suggestions how to proceed.