https://community.hpe.com/t5/operating-system-microsoft/exchange-issues-after-windows-update/m-p/7274118#M15428 <P>We've been seeing email about Microsoft&nbsp;Exchange experiencing growing email queues, port exhaustion, broken OWA etc, after performing the October 2026 Windows update.&nbsp; This is a know issue and Microsoft is investigating.&nbsp; More info is available here:&nbsp; <A href="https://techcommunity.microsoft.com/blog/exchange/released-october-2026-exchange-server-security-updates/4563014" target="_blank">https://techcommunity.microsoft.com/blog/exchange/released-october-2026-exchange-server-security-updates/4563014</A></P> Fri, 16 Oct 2026 15:02:46 GMT mhardi01 2026-10-16T15:02:46Z https://community.hpe.com/t5/operating-system-microsoft/exchange-issues-after-windows-update/m-p/7274118#M15428 <P>We've been seeing email about Microsoft&nbsp;Exchange experiencing growing email queues, port exhaustion, broken OWA etc, after performing the October 2026 Windows update.&nbsp; This is a know issue and Microsoft is investigating.&nbsp; More info is available here:&nbsp; <A href="https://techcommunity.microsoft.com/blog/exchange/released-october-2026-exchange-server-security-updates/4563014" target="_blank">https://techcommunity.microsoft.com/blog/exchange/released-october-2026-exchange-server-security-updates/4563014</A></P> Fri, 16 Oct 2026 15:02:46 GMT https://community.hpe.com/t5/operating-system-microsoft/exchange-issues-after-windows-update/m-p/7274118#M15428 mhardi01 2026-10-16T15:02:46Z https://community.hpe.com/t5/operating-system-microsoft/exchange-issues-after-windows-update/m-p/7274121#M15429 <P>Thanks for sharing this topic with community peers.</P> Fri, 16 Oct 2026 17:11:49 GMT https://community.hpe.com/t5/operating-system-microsoft/exchange-issues-after-windows-update/m-p/7274121#M15429 Thaufique_Mod 2026-10-16T17:11:49Z