Older versions of Outlook no longer supported

Microsoft has discontinued support for older versions of Office. Starting November 1, 2021, the following versions of Outlook for Windows, as part of Office and Microsoft 365 Apps, are not able to connect to Office 365 and Microsoft 365 services:

• Office 2007 (all versions)
• Office 2010 (all versions)
• Office 2013 (Outlook 15.0.4970.9999 and older)
• Office 2016 (Outlook 16.0.4599.9999 and older)
• Office 365 ProPlus 1705 and older

If you are using one of the older versions of Office listed above:

• on your work computer: please open a ticket to have it upgraded to Modern Desktop
• on your home computer: please uninstall it, and install a current version of Microsoft 365 Apps from https://office.com (see details)

Additional Information

• Windows and Office Configuration Support Matrix
• Office versions and connectivity to Microsoft 365 services
• Update history for Microsoft 365 Apps (listed by date)