Table of Contents

Basic Concepts -- System Architecture. Internet E-Mail Architecture. Intermediate Concepts -- Attachments and Address Books. Advanced Concepts -- Security. Applications of Security. Standards-Based ('Open') E-Mail Versus Proprietary Systems. TCP/IP -- The Internet Protocol Suite. DNS -- The Domain Name System. Internet Directory Services. Microsoft Active Directory. Firewalls and Proxy Servers. Network Troubleshooting. SMTP -- Simple Message Transfer Protocol. MIME -- Multipurpose Internet Mail Extensions. DSN -- Delivery Status Notification Extensions. POP -- Post Office Protocol. IMAP -- Internet Message Access Protocol. ACAP -- Application Configuration Access Protocol. NNTP -- Network News Transfer Protocol.

About the Author

Lawrence Hughes has more than 20 years of experience in the computer industry and is currently a regional consulting engineer for Inacom Information Systems, Atlanta, Georgia. He received his B.S. in Mathematics from Florida State University.