Written by an Exchange Server expert, with insights collected directly from Exchange Server 2003 development team, this guide details new system features and explore the client-server, Internet server, and server-client security options? All in one volume, one that is comprehensive. Topics include physical and operational security, threat assessment and modeling; consideration of deployment, deliver SMTP; control content / filtering, virus protection, spam, security features for Internet communications and clients, including Microsoft Office Outlook, Outlook Web Access, IMAP, and POP; intrusion detection / monitoring, backup and recovery, and security audits.