Outlook 2016 (MSI) Update for January 2021

A Rollup Update has been released for Outlook 2016. This is a non-security update which contains the following documented fixes and improvements.

  • Fixes an issue that blocks users from providing justification text when they override a policy.
  • Fixes an issue that causes users to experience occasional crashes while they use Outlook.
  • Fixes an issue that causes the headers of Chinese email messages to be unreadable when you reply to or forward messages.
  • Adds a regkey that enables customers to disable file time inclusion for attachments in IDataObject operations (i.e. drag drop, clipboard).
    • HKCU\SOFTWARE\Microsoft\Office\16.0\Outlook\Attachments
    • REG_DWORD: IncludeFileTimesInDataObject
    • 0 = file times are excluded.
    • 1 = (default) file times are included.

View: Download information for KB4493166

Note: This update can be installed via Microsoft Update and updates Outlook to version 16.0.5110.1000. This update does not apply to Perpetual (Retail) and Microsoft 365 based installations of Office 2016.