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UPDATE 15/03/2023: After Installation of MS Exchange SU March 2023 the issue is resolved!
Download Links March 2023 SU Exchange
Exchange Server 2016 CU23
Some people may recognize an error when entering the good old Exchange Toolbox they receive a big red error after some time of waiting. Not that unusual if there is a issue with the Exchange Transport Service. But this time it’s by design if you activated “Certificate signing of PowerShell serialization payload in Exchange Server”.
If you did the console is broken like this.
Microsoft officially presents two solutions for this problem. See the link to the support article.
First thing is to use PowerShell to see the queue. (nice workaround)
Get-Queue | ft identity,deliverytype,status,velocity,*rate
Second solution is to disable Certificate Signing of PowerShell Serialization Payload feature with the following command:
Get-SettingOverride -Identity "EnableSigningVerification" | Remove-SettingOverride Get-ExchangeDiagnosticInfo -Process Microsoft.Exchange.Directory.TopologyService -Component VariantConfiguration -Argument Refresh Restart-Service -Name W3SVC, WAS -Force
Note: Restart these services on only the Exchange Server-based server on which the settings override cmdlet is run.
No further comment to this “workarounds”, but as you can see, the way into the cloud is the only way to escape this small annoyances.
Happy powershelling or disabling 😉