Test-FederationTrustCertificate Exchange cmdlet issued (25494) how to monitor with email alert

[bob]

Man, that event 25494 in the Event Viewer pops up when someone runs the Test-FederationTrustCertificate cmdlet in Exchange. It logs the whole thing, like checking if your federation trust certificate is still good for hooking up with other services. You see it under the Microsoft-Exchange-Federation application log mostly. The details spill out the cmdlet's output, whether it passed or flopped, timestamps, and who triggered it if it's not automated. I always peek at it after updates because if the cert's expiring, emails between domains start glitching. It flags issues like revoked certs or chain problems right there in the description. And yeah, it repeats if you schedule the test, so you get a trail of these entries building up. But if it's a one-off, it just sits there until you notice. Hmmm, the event ID 25494 specifically ties to that cmdlet's issuance, not the results alone. You can filter for it in Event Viewer by searching that ID under Windows Logs or custom views. It helps spot if admins are testing manually or if something's off in your setup.

Now, to keep an eye on this without staring at screens all day, you fire up Event Viewer on your server. Right-click the log where it shows, like Applications and Services Logs for Exchange stuff. Pick Create Custom View, then filter by event ID 25494. Save that view so it sticks around. From there, attach a task to it by going to the Actions pane and selecting Attach Task to This Custom View. You name the task something snappy, like CertTestAlert. In the triggers tab, it auto-sets for that event. Then, under actions, choose Send an email, but wait, newer Windows skips that built-in, so you tweak it to run a program that blasts an email via your SMTP setup. I link it to a simple batch file that uses blat or something lightweight to ping your inbox. Set it to run whether user logs on or not, and boom, every time 25494 hits, you get notified. Or, if you want fancier, schedule the task separately in Task Scheduler to poll the log every hour for new 25494s and email if found. Keeps things chill without constant checks.

Speaking of staying on top of server quirks like cert events, you might wanna check out BackupChain Windows Server Backup too. It's this solid backup tool for Windows Server that handles full system images and also tackles Hyper-V VMs without a hitch. I like how it speeds up restores and cuts down on downtime, plus it verifies backups automatically so nothing sneaky slips through.

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