To sync Outlook, create an account on each device using the same credentials as your main Outlook account. Then in Outlook settings, add a new account and enter login info. You can choose what data to sync, like emails, contacts, events, or tasks. Click ‘Sync’ or ‘Apply’ to start.

When Outlook's automatic sync fails, manually force the app to sync your email folders. This only requires clicking a single button in the app. To do that, in Outlook's top ribbon, select the "Send/Receive" tab. In this tab, click the "Send/Receive All Folders" option. Outlook will start syncing emails in all your folders.