Not bad, but lacking detailed information
This book has been very helpful in explaining the basics of Exchange server. However, there have been multiple questions that have gone unanswered by this book. If it's intention is to be a complete reference for Exchange, it needs much more detail regarding newsgroups, forms, and client software. I would also like to have seen more detailed instructions on HOW to accomplish something with Exchange. There is a lot of text stating "with Exchange server 5.5, you can do this . . . " fill in the blank, but then there are no follow-up instructions on HOW to accomplish that task. Overall, it is a good beginner's guide, but not very helpful for real-world Exchange administrators who need to use Exchange server to its fullest capacity.
Mixed emotions, but mostly good
This book is big and it talks about a lot of issues but doesn't get into much detail. Perhaps it was not intended to. It sure gives a good general picture for the beginner, but I would have liked to see more on the Internet features like POP3. In coclusion, it's a good "overall" book on Exchange, but my advice is to supplement it with some smaller specialized books like MS Exchange Server Internet Mail Connector by Spyros Sakellariadis
Don't implement MS Exchange 5 without consulting its advice!
Using Microsoft Exchange Server
