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Oklahoma State University

End of Life - Microsoft Outlook for Windows

Announcement - 03/22/2021

Microsoft has announced that they will be updating the supported versions of Outlook for Windows that can connect to Microsoft 365 services. Effective November 1, 2021, the following versions of Outlook, as part of Office and Microsoft 365 Apps, will not be able to connect with Office 365 and Microsoft 365 services:

Office 2007
-Outlook for Windows Version: All Versions

Office 2010
--Outlook for Windows Version: All Versions

Office 2013
-Outlook for Windows Version: 15.0.4970.9999 and older
(Service Pack 1 with the October 2017 Update)

Office 2016
-Outlook for Windows Version: 16.0.4599.9999 and older

-Microsoft 365 Apps for enterprise (formerly Office 365 ProPlus)
-Outlook for Windows Version: 1705 and older

-Microsoft 365 Apps for business (formerly Office 365 Business)
-Outlook for Windows Version: 1705 and older

All users are recommended to upgrade to the supported versions of Office and Microsoft 365 Apps to avoid connectivity issues. To see a list of currently supported versions, please visit:

For Microsoft 365 Apps:
https://docs.microsoft.com/en-us/officeupdates/update-history-microsoft365-apps-by-date

For Office 2013 and 2016:
https://docs.microsoft.com/en-us/officeupdates/office-updates-msi

Campuses Affected

  • OSU-Stillwater
  • OSU-Tulsa
  • OSU Center for Health Services
  • OSU-Institute of Technology
  • OSU-Oklahoma City
  • Connors State College
  • Langston University
  • Panhandle State University
  • Northeastern Oklahoma A & M
  • Northern Oklahoma College at Stillwater

Services Affected

Outlook for Windows Versions:
2007 & 2010: all versions
2013: 15.0.4971.1000 and older
2016: 16.0.4600.1000 and older
Office 365: 1705 and older

Announcement Contact Information

IT Helpdesk
405-744-4357
helpdesk@okstate.edu

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