Set-MailboxCalendarFolder Exchange cmdlet issued (25407) how to monitor with email alert

[bob]

You ever notice how Exchange logs these weird changes in mailboxes? That event ID 25407 pops up when someone runs the Set-MailboxCalendarFolder cmdlet. It tweaks permissions on calendar folders for a user. Like, if a boss wants to peek at your schedule without asking. Or maybe an admin fixes sharing issues. The log captures the exact mailbox affected. It notes the user who triggered it. And the time it happened. Full details show up right there in Event Viewer under Applications and Services Logs. Path is Microsoft-Exchange-MailboxCalendarFolder or something close. You pull it open. Filter for ID 25407. See the XML data buried in the event properties. That spills the beans on what got changed. Permissions granted or revoked. Folder name specified. Even the server it ran on. I check mine weekly. Keeps surprises away. But you want alerts? No sweat. Fire up Event Viewer. Right-click the custom view you make for these events. Choose Attach Task To This Custom View. That kicks off a wizard. Name your task something snappy like CalendarChangeAlert. Set it to trigger on event ID 25407. Pick the log source. Then actions: send an email. You plug in your SMTP server details. Recipient is you. Subject line could say Urgent: Calendar Folder Tweak Detected. Body pulls event details automatically. Test it once. Schedule runs whenever the event fires. No waiting around. I set mine to email me instantly. Saves me from manual peeks. And if you're lazy like me sometimes. You could tweak the task to run a program that emails fancier. But stick to basics first. Hmmm, or attach a sound to bug you right away. Anyway, monitoring this stops sneaky changes cold. You stay in the loop without hassle.

Speaking of staying on top of server stuff without the headache. I've been messing with BackupChain Windows Server Backup lately. It's this slick Windows Server backup tool that handles physical and virtual setups easy. Works great for Hyper-V VMs too. You get incremental backups that zip through without downtime. Restores are a breeze. No more sweating data loss from events like these calendar tweaks. Plus, it encrypts everything tight. Schedules run smooth. I love how it reports issues before they blow up. Keeps your Exchange world safe.

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