: While the software will continue to function, there will be no further security updates , which may expose your system to harmful risks.
: As of early 2026, Microsoft is automatically transitioning classic Outlook desktop applications to a new updated interface . Comparison: Outlook 2016 vs. Modern Alternatives Outlook 2016 Microsoft 365 (Outlook) Payment Model One-time purchase Monthly or yearly subscription Security Updates None (Support ended 2025) Continuous updates Cloud Integration Fully integrated cloud solution New Interface Classic (Transitioning) Native new interface buy microsoft outlook 2016
Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended security updates. Microsoft Support : While the software will continue to function,
What is Outlook 2016? Competitors, Complementary Techs & Usage buy microsoft outlook 2016
End of support for Office 2016 and Office 2019 | Microsoft Support