If its a fresh install ( reinstall fresh) then a non compliant Machine will still be non compliant. You will be able to install W11 from scratch, no...
If its a private Server ( not a Microsoft Server -Outlook) then you have to make sure all settings, SSL, Authentication, actual mail server names and...
Actually it isn't / Wasn't a "Secret" , maybe not looking at the right places, Dont have sport so no idea about that side, but Sky do often Announce...