Set-MailboxSpellingConfiguration Exchange cmdlet issued (25416) how to monitor with email alert

[bob]

That event 25416 in Event Viewer, it's like a flag waving when somebody fires off the Set-MailboxSpellingConfiguration cmdlet in Exchange. You see, this cmdlet tweaks how spelling checks work across mailboxes, maybe enabling or disabling auto-corrections for emails. It logs under the admin audit section, showing who ran it, from which computer, and exactly when. I check these because they can signal admin changes you didn't make yourself. Hackers love slipping in commands like this to mess with settings quietly. The full details pop in the event properties, with the user's name, the parameters used, like which mailboxes got hit. It even notes if it succeeded or bombed out. You ignore these at your peril, trust me. They tie into security auditing, helping you track every tweak to Exchange configs.

To keep tabs on it with an email ping, you hop into Event Viewer on your server. Filter the log for ID 25416 under the Microsoft-Exchange-Admin/Operational channel. Right-click that event, pick attach task to this event. You build a simple task there, naming it something like SpellConfig Alert. Set it to run whether user logs on or not. For the action, choose send an email, plug in your SMTP server details and the recipient address. I always test it by triggering a dummy event first. That way, alerts fly to your inbox whenever this cmdlet gets issued. No fuss, just built-in tools doing the work.

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