Microsoft has confirmed that the October 2026 Windows Patch Tuesday updates are causing stability problems on some Exchange Server deployments, leading to Outlook on the web (OWA) failures, growing ...

Internet exchange introduces open-source Model Context Protocol server to let customers use AI agents to find, order and ...

Microsoft has acknowledged that the October 2026 Windows Server updates may be destabilizing Exchange Server. The problems are related to this list of Windows Server updates (see here) and Microsoft ...

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.

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German]The security updates for Windows Server released by Microsoft on October 13, 2026, are also affecting Microsoft Exchange Server. Reports on my German blog and across the internet indicate ...

Microsoft officially ended Extended Security Updates (ESU) for Exchange Server 2016 and 2019, along with Skype for Business Server 2015 and 2019, on October 13, 2026. The products originally reached ...

Microsoft Patch Tuesday October 2026 fixed a record 1,413 CVEs, including an actively exploited Windows Shell zero-day, ...