TABLE OF CONTENTS Understanding Microsoft Messaging Services
Understanding Linux-Based Messaging Services
Designing Linux-Based Messaging Services
Integrating Anti-Spam and Anti-Virus Services
Migrating Information from Exchange to Linux
Summary
Solutions Fast Track
Frequently Asked Questions
Messaging services provide vital communication links between company personnel and the world at large. For most businesses, e-mail is not a luxury option it is a mission-critical priority. The loss of e-mail for a full business day will mean lost business, missed or delayed communication, business slowdown, financial losses, and frustrated employees and customers. The more time you spend learning about and planning Linux-based messaging services, the less time you will spend fixing problems and explaining outages to your boss and co-workers.
Enterprise messaging services offer multiple features to the end-users. In addition to an IMAP message store that follows a user to any company desktop (or laptop), a directory providing e-mail address lookups (set up in previous chapters), as well as anti-virus and anti-spam filtering, form the core sub-services for enterprise messaging. Most also provide some type of web-based e-mail client, and many incorporate groupware features such as calendars and shared folders. This chapter provides an overview of these services, lists open source solutions, and provides guidelines for design of and migration to Linux-based messaging services.
This chapter focuses on migrating from Exchange (or another messaging system with an IMAP/POP interface) to a Linux-based MTA-MDA-MAA-MUA messaging system. While most of the principles apply to non-Exchange systems, we will use Exchange in the...
