How to set "Choose which browser opens web links in Office365" so that Browser Router properly routes web links in Outlook
Netwrix Endpoint Policy Manager (formerly PolicyPak) Cloud already has the Office2016/Office365 ADMX settings available in the Cloud and they can be accessed via the Endpoint Policy Manager Admin Templates Manager built-in cloud editor.
For the Endpoint Policy Manager OnPrem version, you can download the Office 365 ADMX files from here - https://www.microsoft.com/en-US/download/details.aspx?id=49030 for use in your On-Prem environment.
Also, this policy will not work for Microsoft 365 Apps for Business, See Group Policy Support section in the table at the link below:
11 Limited to policies for web apps and privacy policies for client apps.
SCENARIO 1: Using Endpoint Policy Manager Cloud
Create a new Admin Template policy with the appropriate setting from the ADMX template (use Keyword section to search):
Now set the value to "System default browser" instead of "Microsoft Edge" in the policy:
SCENARIO 2: Using Endpoint Policy Manager On-Prem
Once Office ADMX is deployed, create a new Admin Template policy with the appropriate setting from the ADMX template (use Keyword section to search):
Now set the value to "System default browser" instead of "Microsoft Edge" in the policy: