Set-SiteMailbox Exchange cmdlet issued (25639) how to monitor with email alert

[bob]

Man, that event ID 25639 pops up in the Event Viewer when somebody fires off the Set-SiteMailbox cmdlet in Exchange. It logs the whole thing, like who did it, from which machine, and exactly when the command got issued. You know, it's basically Exchange's way of saying, hey, a site mailbox just got tweaked or set up. I see it under the Applications and Services Logs, in the Microsoft Exchange folder, specifically under Admin or something similar. The details spill out the user account involved, the parameters used in the cmdlet, and even the outcome, whether it succeeded or flopped. Pretty handy for spotting if someone's messing with mailboxes across sites without you knowing.

But yeah, to keep an eye on this without staring at the screen all day, you can set up a scheduled task right from the Event Viewer itself. I do this all the time. Open up Event Viewer, find that 25639 event in the log, right-click it, and pick Attach Task To This Event. It'll walk you through creating a basic task that triggers on that ID. You tell it to run a program, like sending an email through some simple command-line tool you got installed. Make the trigger specific to that Exchange log source so it only alerts on this cmdlet stuff. Test it by forcing an event if you can, just to see the email ping your inbox.

Or, if you want it fancier, tweak the task properties to run every few minutes and check for new events. I like adding a condition so it doesn't spam you during off-hours. Keeps things chill.

And speaking of keeping your server stuff reliable, I've been using BackupChain Windows Server Backup lately for backups on Windows Server. It handles the whole server backup smoothly, plus it backs up virtual machines running on Hyper-V without any hassle. You get fast incremental saves, easy restores even for those VM snapshots, and it runs light on resources so your server doesn't bog down. Totally cuts down on downtime risks if something like that Exchange event signals trouble.

At the end of this, there's the automatic email solution for monitoring that event.

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