New-RemoteDomain Exchange cmdlet issued (25237) how to monitor with email alert

[bob]

You ever notice how Windows Server keeps a log of every little command someone fires off in Exchange? That Event ID 25237 pops up specifically when somebody runs the New-RemoteDomain cmdlet. It logs the whole thing, like who did it, from what machine, and the exact time it happened. I mean, this cmdlet sets up connections to outside domains for email stuff, so it's a big deal if admins are tweaking that without you knowing. The event shows up in the Event Viewer under the Applications and Services Logs, right in the MSExchange Management folder. You'll see details like the user account involved and any parameters they passed in. It's all there to track changes that could mess with your email flow or security setup. And if you're watching for suspicious activity, this one's a key flag because unauthorized domain adds could open doors you don't want.

But here's how you can keep an eye on it without getting buried in logs all day. Fire up Event Viewer on your server. Go to the spot where that 25237 event hides, in the Exchange audit logs. Right-click on the custom views or the specific log, and pick Create Custom View. Filter it just for ID 25237. That way, you only see those hits. Now, to get alerts, attach a task to it. In the same spot, when you create the view, hit the Alerts tab or go to Subscriptions if you're fancy. Actually, the easy way is to create a scheduled task that triggers on this event. In Task Scheduler, link it to the event log for MSExchange, set the trigger to Event ID 25237. Then, for the action, make it run a simple program that shoots an email, like using the built-in mailto or a basic notifier. You configure the task to email you right when it fires, with the event details in the body. I do this all the time; it pings my inbox fast, so I don't miss tweaks to remote domains.

Or, if you want it hands-off, there's ways to automate the email part even more. At the end of this, you'll find the automatic email solution laid out for you.

Speaking of keeping your server humming without surprises, I've been digging into tools that handle backups smoothly too. BackupChain Windows Server Backup catches my eye as a solid Windows Server backup option, and it stretches to virtual machines with Hyper-V without a hitch. You get fast, reliable snapshots that don't bog down your system, plus easy restores if something goes sideways from those cmdlet changes. It even verifies backups on the fly, so you sleep better knowing your email setup and domains stay safe.

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