Use iCloud for Windows to synchronize mail, calendar, and ...
support.microsoft.com › en-us › officeAfter installation, launch the iCloud app and sign in with your Apple ID and password. In the iCloud app, select the option to sync Mail, Contacts, Calendars, and Tasks, then click Apply. Once the setup has finished, launch Outlook. Your iCloud email, contacts, and calendars should now be synchronizing with Outlook.