I hope you can help me with this... Am I understanding it right, that I can only build an outlook mobile app config, with the configuration designer that is an O365 Mail Account? My scenario is the following: We have some new users, that need an additional Mail Account configured besides their Main Mail Account on our Exchange Online. But the problem is, this other mail account is from their old IT and it is no microsoft exchange server (host-europe), and also has no autodiscover enabled. What options do we have now? - I guess the easiest would be to use a secondary Mail App, like the native samsung mail app + google kalender. Is there a way to configure this account on every device in a specific group?