Merge pull request #10545 from haywoodsloan/sql-db-mail-issue

Add SQL known issue (Database Mail)

Author: aartig13

support/sql/releases/includes/database-mail-stops.md

@@ -0,0 +1,7 @@
+Database Mail stops working after you install this cumulative update. You might see the following error message:
+
+> Could not load file or assembly 'Microsoft.SqlServer.DatabaseMail.XEvents, Version=17.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.
+
+If you use Database Mail, don't install this update until a fix is available.
+
+If you already installed this update, [uninstall it](/sql/sql-server/install/uninstall-a-cumulative-update-from-sql-server) to restore Database Mail.

support/sql/releases/sqlserver-2022/cumulativeupdate23.md

@@ -1,7 +1,7 @@
 ---
 title: Cumulative Update 23 for SQL Server 2022 (KB5074819)
 description: This article contains the summary, known issues, improvements, fixes, and other information for SQL Server 2022 Cumulative Update 23 (KB5074819).
-ms.date: 01/15/2026
+ms.date: 01/20/2026
 ms.update-cycle: 1095-days
 ms.custom: sap:Installation, Patching, Upgrade, Uninstall, evergreen, KB5074819
 ms.reviewer: v-shaywood
@@ -24,6 +24,10 @@ This article describes Cumulative Update package 23 (CU23) for Microsoft SQL Ser
 
 ## Known issues in this update
 
+### Database Mail stops working after updating
+
+[!INCLUDE [database-mail-stops](../includes/database-mail-stops.md)]
+
 ### Incorrect behavior of SESSION_CONTEXT in parallel plans
 
 [!INCLUDE [av-session-context](../includes/av-sesssion-context.md)]

support/sql/releases/sqlserver-2025/cumulativeupdate1.md

@@ -1,7 +1,7 @@
 ---
 title: Cumulative update 1 for SQL Server 2025 (KB5074901)
 description: This article contains the summary, known issues, improvements, fixes, and other information for SQL Server 2025 Cumulative Update 1 (KB5074901).
-ms.date: 01/15/2026
+ms.date: 01/20/2026
 ms.update-cycle: 1095-days
 ms.custom: sap:Installation, Patching, Upgrade, Uninstall, evergreen, KB5074901
 ms.reviewer: v-shaywood
@@ -24,6 +24,10 @@ This article describes Cumulative Update package 1 (CU1) for Microsoft SQL Serve
 
 ## Known issues in this update
 
+### Database Mail stops working after updating
+
+[!INCLUDE [database-mail-stops](../includes/database-mail-stops.md)]
+
 ### Incorrect behavior of SESSION_CONTEXT in parallel plans
 
 [!INCLUDE [av-session-context](../includes/av-sesssion-context.md)]