Symptoms
When you install Cumulative Update 1(CU1), CU2 or CU3 for Microsoft SQL Server 2016 Service Pack 2, you will notice that the config file DatabaseMail.exe.config may be removed. Additionally, the Database Mail feature may not work correctly and cannot send email messages.
Resolution
This issue is fixed in the following cumulative update for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminologythat Microsoft uses to describe software updates.
