Microsoft: October Windows Server updates break Exchange sign-in, mail flow
Microsoft's October Windows Server patches are breaking Exchange OWA sign-in and mail delivery—a reminder that organisations still running on-premises Exchange must test cumulative updates in staging before production rollout.
Summary written by editorial AI · Source link below
Microsoft has confirmed that this month's Windows Server security updates are causing OWA sign-in and mail delivery issues on some Exchange Server systems. [...]
Editorial Analysis
On-premises Exchange remains a business-critical system in many European enterprises; patch-induced outages can disrupt operations and complicate compliance with uptime requirements under DORA and NIS2.
Pause deployment of the October Windows Server cumulative update on Exchange servers and test in a staging environment before proceeding.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at BleepingComputer in a new tab.
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