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Exchange Team Blog
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Released: February 2023 Exchange Server Security Updates

The_Exchange_Team's avatar
The_Exchange_Team
Platinum Contributor
Feb 14, 2023
Microsoft has released Security Updates (SUs) for vulnerabilities found in: Exchange Server 2013 Exchange Server 2016 Exchange Server 2019 SUs are available in a self-extracting auto-elev...
Updated Mar 03, 2023
Version 13.0
announcements
Exchange 2013
exchange 2016
exchange 2019
security
setup
adixro's avatar
adixro
Brass Contributor
Feb 15, 2023

Renat Matveev Nino_Bilic Anything using EWS is affected (OUtlook MAC/Apple Mail disconnected, add-ons).

 

MSExchangeServicesAppPool is constantly crashing

 

The Exchange Web Services started successfully.

 

An unhandled exception occurred and the process was terminated.

Application ID: /LM/W3SVC/2/ROOT/EWS

Process ID: 36180

Exception: Microsoft.Exchange.Diagnostics.BlockedDeserializeTypeException

Message: Deserialization of type System.MarshalByRefObject blocked due to InDeny at location ClientExtensionCollectionFormatter.

 

A process serving application pool 'MSExchangeServicesAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '28172'. The data field contains the error number.