This script will create a documation of your Exchange 2010 environment in an HTML file.
You need a minimum of Windows 8 or 2012 and Exchange 2010 shell to have it work for you.
The following areas are covered:
Exchange Server Information
Database Availability Group Information
Client Access Server Information
CAS Array Information
Transport Server Information
Email Address Policies
You must modify the script to let it know here to save the HTML file.
Script takes a while to run >20 minutes on a larger enviroment due to the time it takes for gather the OWAVirtualDirectory information from remote sites.
It probably needs a lot of optimisation and maybe a better look but it gathers all the information quickly for an environment you just arrived in.