Outlook 365 broke for us too. Seems to be only server 2016 (terminal server) after the update on 11/1

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Occasional Reader

Nov 03, 2025

Outlook broke after Office 365 update to 16.0.19328.20158 – cannot open emails Windows Server 2016

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wcalkins
Copper Contributor
Nov 04, 2025
Outlook 365 broke for us too. Seems to be only server 2016 (terminal server) after the update on 11/1