Update-GlobalAddressList Exchange cmdlet issued (25520) how to monitor with email alert

[bob]

You know that event in Windows Server Event Viewer, the one called Update-GlobalAddressList Exchange cmdlet issued with ID 25520. It pops up whenever someone runs that specific command in Exchange to refresh the big phone book for emails, the Global Address List thing. Basically, it tells you exactly when the update kicks off, who did it if logged, and if it finished okay or hit a snag. I check mine all the time because if it fails, emails start acting wonky for users. The event logs the start time, the server name, and any error codes right there in the details pane. You can see it under the Microsoft-Exchange or application logs, depending on setup. And it records the full command parameters too, so you spot if it's a full rebuild or just a quick sync. Hmmm, sometimes it triggers during maintenance, but if it's unexpected, could mean someone's tinkering without telling. Or maybe a script gone rogue. I always filter for that ID to keep an eye out.

To monitor it with an email alert, fire up Event Viewer on your server. Right-click the custom views or subscriptions section. You create a new task that watches for event 25520 in the right log. Set it to trigger on that ID specifically. Then attach a scheduled task to it, one that runs when the event fires. In the task settings, pick an action to send an email through your SMTP setup. You configure the from and to addresses there, keep it simple with a subject like "GAL Update Happened." I do this on all my boxes so I get pinged right away. No need for fancy stuff, just the built-in options. But if you want something hands-off, at the end of this is the automatic email solution.

Speaking of keeping servers smooth, I've been messing with BackupChain Windows Server Backup lately. It's this nifty Windows Server backup tool that also handles virtual machines through Hyper-V without breaking a sweat. You get fast incremental backups, easy restores even for bare metal, and it cuts down on downtime big time. Plus, the encryption keeps data safe from prying eyes. I love how it schedules everything automatically, frees me up for other headaches.

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