From an interview with, Margaret Arakawa, senior director of Security & Access Product Marketing at Microsoft:
We’ve seen significant demand from customers across the complete product portfolio, from client to server to network edge security. On the application server side, customer adoption is really accelerating with organizations worldwide. We’re now protecting more than 20 percent of Exchange on-premise mailboxes with Forefront Security for Exchange Server. On the collaboration server side, Microsoft has seen tremendous customer demand for our Microsoft Office SharePoint Server solution. As SharePoint becomes a mission-critical collaboration application where customers store confidential and sensitive materials, customers are realizing the importance of protecting it. The unique capabilities that Forefront Security for SharePoint delivers that have made it the market leading solution include multiple scanning engines, Rights Management Server (RMS) integration, advanced content filtering, and deep integration with Office SharePoint Server 2007.