Can’t setup Nine with G Suite account. How do I set up my G Suite account?
When your Nine app needs a permission to access your company's Exchange server...
How do I set up my Outlook.com account?
How do I set up my Office 365 account?
Office 365 account requires repeated login attempts
Remote Connectivity Analyzer - Exchange ActiveSync
If you can't complete an Office365 account setup from Settings, please start it from Navigation drawer.