Additional Reading

• The Microsoft Exchange 2000 Server Front-End and Back-End Topology white paper is the definitive reference on the specifics of configuring FE/BE topologies for your network. It s available from http://www.microsoft.com/exchange/ .

• The Quick Start for S/MIME in Exchange Server 2003 white paper is a good, basic introduction to the mechanics of setting up S/MIME for Exchange systems; it includes detailed instructions on how to set up and test S/MIME with Outlook Web Access.

• Shinder & Shinder have written an outstanding guide to using ISA Server, ISA Server and Beyond (Syngress). If you re not an ISA Server expert, you ll probably find this book worth its weight in gold. (Their earlier Configuring ISA Server 2000 is pretty good, but the newer book has much deeper Exchange and Outlook Web Access coverage.)

• The isaserver.org Web site contains a number of useful articles about using ISA with Exchange, as well as a wealth of general ISA troubleshooting and deployment papers and articles that will help you get started.

• The National Security Agency publishes Guide to Secure Configuration and Administration of Microsoft ISA Server 2000, a good overall guide to ISA Server security and deployment (see http://www.nsa.gov/snac/win2k/download.htm ). In particular, the guide has additional coverage of the use of ISA on trihomed systems.