In the event of having problem with Office 365 modern authentication, please use ' Exchange Server or Others ' option instead. Option 2: Install Microsoft Outlook for Mobile on the device and add While newer email clients will default to using Modern Authentication, that default can be overridden by end-users at client-side. For example, credentials in a modern auth compatible app are not stored on the client device, and whenever something about the connection or state changes, the client is required to re-authenticate.
