My inaugural DoExTip is a script I have been rocking out to and enthusiastically recommending to customers for over a year: the fantastic Exchange Environment Report script by UK Exchange MVP Steve Goodman. Apparently Microsoft agrees, because they highlight it in the TechNet Gallery.
It’s a simple script: run it and you get a single-page HTML report that gives you a thumbnail overview of your servers and databases, whether standalone or DAG. It’s no substitute for monitoring, but as a regular status update posted to a web page or emailed to a group (easily done from within the script) it’s a great touch point for your organization. Run it as a scheduled task and you’ll always have the 50,000 foot view of your Exchange health.
I’ve used it for migrations in a variety of organizations, from Exchange 2003 (it must be run on Exchange 2007 or higher) on up. I now consider this script an essential part of my Exchange toolkit.