Removing Obsolete Mobile Device Partnerships from Exchange Online

This article discusses how to use PowerShell to find obsolete mobile device partnerships in Exchange Online (or Exchange Server) and remove the obsolete devices. Users won’t be able to remove obsolete mobile devices after the settings to manage mobile devices are removed from OWA and the New Outlook, so cleaning up the mess is the responsibility of administrators (like it usually always is).

https://office365itpros.com/2025/08/20/obsolete-mobile-device-cleanup/