Hi
We have recently migrated few test users mailbox to O365 and we found outlook's performance really bad with online mode. Previously we had on-prem exchange so online mode did not affect us much.
So in order to overcome this, we followed the below steps
1) Created a Custom UIA template following KB article 2149799
2) Also used ADMX(UEM) for Office 2016 and redirected the OST
The Above solution is working fine but after few seconds of launch outlook asks for a restart and this message keeps popping up
We followed few posts in the community and tried excluding click to run registry and the path but no luck.
Current Versions are
Horizon 7.2
App volumes 2.12
UEM 9.1
Thank you