Microsoft Exchange Server 2007 marks the biggest advance in the history of Exchange. Of course, Microsoft couldn't fix all the bugs, or get in all the cool new bells and whistles in time to make the initial release date. So now there's SP1, a "service pack" that not only perfects the product, but also adds whole new features and functions, from more friendly user interfaces to better support for mobile devices. The nearly one million IT professionals working with Microsoft Exchange today will need to wrap their heads around all the many changes in SP1. In fact, many businesses haven't yet made the switch to Exchange 2007, becasue they felt it was so important to wait for SP1! So hold on to your hats, Exchange 2007 is about to switch into high-gear! And there's no better guide to the revolution than bestselling author Tony Redmond. With his new and improved Exchange 2007 book, he gives Microsoft professionals all the info they need to successfully make the leap.