I am trying to build a new Windows 10 machine to authenticate against an Azure AD. I have told Windows that the owner of the machine is "My Organisation" and I want to "join Azure AD".
However when I put my username in I get "Your organisation doesn't allow users to set up Windows in this way. Use another email address or set up Windows with a local account".
Is there something I need to configure on the Azure AD? As far as I can tell it should allow all users to authenticate.
I should stress that Azure AD is a trail while I look into the possibility of moving to Office 365.