Disable-CmdletExtensionAgent Exchange cmdlet issued (25124) how to monitor with email alert

[bob]

You know that event ID 25124 in Windows Server Event Viewer? It's all about when someone fires off the Disable-CmdletExtensionAgent command in Exchange. Basically, it logs that exact moment a cmdlet gets issued to shut down one of those extension agents. Those agents handle stuff like extra scripting or checks during admin tasks in Exchange. If you see this pop up, it might mean someone's tweaking permissions or disabling security hooks on purpose. Could be legit, like during maintenance. Or it could flag something shady, like an insider messing with controls. The event details usually spill the username who ran it, the time stamp, and which agent got hit. I always check the source-it's from MSExchange Management or similar. And yeah, it lands in the Application log mostly. You can filter for it right in Event Viewer to spot patterns. Hmmm, sometimes it ties to bigger audits if you're watching admin changes closely.

Now, for monitoring this with an email alert, you don't need fancy code. Just hop into Event Viewer on your server. Right-click the Application log or wherever these events hide. Pick Create Custom View. Set it to snag event ID 25124 from the Exchange sources. Save that view so it sticks around. Then, to get alerts, attach a task to it. Go to the Actions tab in Event Viewer. Hit Create Basic Task. Name it something like Exchange Agent Disable Alert. Trigger it on that custom view. For the action, choose Send an email-yeah, Event Viewer has that built-in option. Plug in your SMTP server details, the to and from addresses. You can even toss in the event description so the email spells out what happened. Test it once to make sure it zips off without a hitch. That way, every time 25124 triggers, you get a ping straight to your inbox. Keeps you in the loop without staring at screens all day.

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Note, the PowerShell email alert code was moved to this post.