IE 11 support for Microsoft 365 apps and services has ended on August 17, 2021

[German]Small reminder for users and administrators of Internet Explorer 11. As of August 17, 2021, support for this browser in Microsoft 365 apps and services has ended.


I became aware of this information via the following tweet – the ability to use Microsoft 365 apps and services via Internet Explorer 11 has ended. The details can be found in this Techcommunity post.

Microsoft 365 apps and services will no longer support Internet Explorer 11

Users may experience limited or no use of these applications and services from Internet Explorer 11. Microsoft plans to phase out these apps and services over weeks and months to ensure a smooth end to support, with each app and service phased out on an independent schedule.

Those who experience issues accessing Microsoft 365 apps and services through IE11 after Aug. 17, 2021, will no longer receive support. Users should also be prepared for no more new features. Over time, the usability of IE 11 for these tasks will continue to deteriorate until the apps and services are shut down. In this regard:

  • Outlook Web App: Users logging in with AAD accounts will continue to get full OWA usage, but no new features after August 17, 2021, while users logging in with Microsoft Accounts (MSA) will be redirected to Outlook Web App Light.
  • Open with Explorer/View in File Explorer (SharePoint): Microsoft understands that some customers continue to use the Open with Explorer and View in File Explorer features (available only in IE11) to access document libraries. To avoid disruption, these customers can use these features until further notice when accessing a document library in IE11. These features are in maintenance mode and will not be further developed. Microsoft recommends that all customers migrate to a modern browser and OneDrive synchronization. For more information on how administrators can prepare the SharePoint environment for the end of support for IE11, see this article.

ll other applications and services are scheduled to be phased out over weeks and months to ensure a smooth end of support, with each application and service ending on its own schedule.


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