Set Outlook as default mail client for all users

[jimmy_2k]

Hi all

 

I'm trying to set Outlook 2016 as the default mail client for all users via group policy. On some PCs Outlook is the default and for others (typically those who want to do mail merges) Windows mail is the default and due to our group policies, I'm not able to change the settings via their logon. I'm trying to import an ADM template I found online which is supposed to set this as default but with no joy. Has anyone cracked this problem and can please give me some tips?

 

J

[BOOT]

I use the following:

DISM.EXE /ONLINE /Import-DefaultAppAssociations:"customdefaults.xml"

 

customdefaults.xml