Forum Discussion
Outlook for Android Login Error
Sorry, but you didn't read my post carefully as your proposed solution has nothing to do with the issue.
Anyway, thanks for the attempt.
sorry to here that, Please refer the below links that may help..
1. https://support.office.com/en-us/article/enroll-your-mobile-device-in-office-365-c8ac722d-dcaf-4135-8345-3e6327f5d3c5?ui=en-US&rs=en-US&ad=US
2. https://support.office.com/en-us/article/set-up-mobile-device-management-mdm-in-office-365-dd892318-bc44-4eb1-af00-9db5430be3cd?ui=en-US&rs=en-US&ad=US
Autodiscover The Autodiscover service feature automatically configures Outlook to work with Exchange Online. Outlook users can receive their required profile settings directly from Exchange Online the first time they sign in with their email address and password. These settings automatically update the Outlook client with the information necessary to create and maintain the user's profile. An SSL certificate is required to use the Autodiscover service. This SSL certificate is limited to a single primary SSL domain.
Cached Exchange Mode The Cached Exchange Mode feature allows Outlook users to access local copies of their Exchange Online mailboxes when they are not connected to the Internet. Cached Exchange Mode retains a client-side copy of users’ Exchange mailboxes in Outlook and automatically synchronizes this copy with the email server. We recommend using Outlook in Cached Exchange Mode because it provides offline access and helps to provide a responsive user experience even when network conditions between the client and the server are not ideal.