Exchange Server August 2025 Security Updates

Andres Bohren
Exchange Server August 2025 Security Updates

Hi All,

Microsoft has released the Exchange Server Security Updates yesterday for all currently supported Versions:

  • Exchange Server Subscription Edition (SE)
  • Exchange Server 2019
  • Exchange Server 2016

Exchange Team Blog Article

Exchange Server Subscription Edition

In my case, i’ve downloaded the Security Update for Exchange Server Subscription Edition

Installation

After the Download i started the *.exe File

Installation was successful

You have to Reboot after the Installation

Check Version

Check the Exchange Server Version

Get-Command Exsetup.exe | ForEach-Object {$_.FileVersionInfo}

Healthchecker

After Updating Exchange you should always run HealthChecker

Run HealthChecker to update Version

.\HealthChecker.ps1

Run HealthChecker and check the Warnings and Errors

.\HealthChecker.ps1

Exchange Server 2016

Download the *.exe File

Run the *.exe File

Insallation was successful

Check Version Exchange 2016

Check the Exchange Server Version

Get-Command Exsetup.exe | ForEach-Object {$_.FileVersionInfo}

Healthchecker Exchange 2016

After Updating Exchange you should always run HealthChecker

Run HealthChecker to update Version

.\HealthChecker.ps1

Run HealthChecker and check the Warnings and Errors

.\HealthChecker.ps1

Let’s have a look

Get-TransportService -Identity ICESRV06 | fl *maxperdomain*, *retry*

Let’s fix that issue

Set-TransportService -Identity ICESRV06 -MaxPerDomainOutboundConnections 40 -MessageRetryI
nterval 00:05:00
Get-TransportService -Identity ICESRV06 | fl *maxperdomain*, *retry*

Now we are fine

Regards
Andres Bohren

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