Microsoft Exchange Replication service stops responding on host server

Symptoms

The Microsoft Exchange Replication service stops responding on the host server because of deserialization blockage.

Resolution

To fix this issue, install the following security updates, as appropriate:

• Description of the security update for Microsoft Exchange Server 2019: June 13, 2023 (KB5026261)
• Description of the security update for Microsoft Exchange Server 2016: June 13, 2023 (KB5025903)