Yesterday, Microsoft has released new Exchange Security Updates. Read more at the Blog Post from the Exchange Team
In my case that’s Exchange 2016 CU23 Security Update 8
- Security Update For Exchange Server 2016 CU23 SU8 (KB5025903)
- Description of the security update for Microsoft Exchange Server 2016: June 13, 2023 (KB5025903)
Installing the Security Update
After the Security Update is installed, it is a good idea to restart the Server. Make sure the Exchange Services are started afterwards.
Then run the Exchange HealthChecker
After the Update of the Health Checker run it again