Anyone can justify the following IIS settings for Exchange 2010 CAS?
Configure Global .NET trust level
An application's trust level determines the permissions that are granted by the ASP.NET code access security (CAS) policy.
Default Web Site/ - Full
Default Web Site/Migration - Full
Http://technet.microsoft.com/en-us/library/cc754779.aspx
By setting Trust level below FULL,High – Restrict Access to Message Queuing Service Queries?
Kelvin Teang