Microsoft released a new white paper: Protecting HMC 4.5 Environments with Forefront Security for Exchange Server.
This white paper outlines how customers can improve protection for HMC 4.5 environments for Forefront Security for Exchange Server.
HMC (Hosted Messaging and Collaboration) 4.5 is the latest solution for Microsoft service providers that includes the following products:
- Exchange Server 2007 SP1
- SharePoint Services 3.0 SP1
- Microsoft Office Communications Server 2007
- Microsoft System Center Operations Manager 2007
- Windows Server 2003/2008
If you're interested in hosting, you may want to check my series of articles regarding this issue: Shared Hosting with Exchange 2007.