Last Updated: May 26, 2022
Warning: This task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.
From the Start menu, type regedit.exe in the search box, and then press Enter.
If you are prompted for an administrator password or for confirmation, type the password or provide confirmation.
In Registry Editor, navigate to: HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION
Find the REG_DWORD OUTLOOK.EXE and double-click to edit.
Select Decimal and change it to 11001 and select OK.
Close Registry Editor and restart Outlook.
Note: While using this workaround, the Outlook Today feature may not display information correctly.
REFERENCE: Add a Gmail account to Outlook
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