TABLE OF CONTENTS An essential part of protecting your Exchange environment is planning and deploying an appropriate virus defense system. The system should be able to protect against viruses at several levels throughout your organization s messaging system. Gone are the days when it was sufficient to install a single-layer system. Depending on the size of your Exchange environment, you should strive to scan for viruses in the perimeter network (the DMZ), typically by using SMTP gateways, at each Exchange server level, as well as the client level. Another important task is to educate your users so that they have a proper understanding of suspicious e-mail messages and therefore know how to deal with incoming e-mail, especially those including attachments.
In this chapter we ll discuss:
E-mail viruses
Server-side protection
Client-side protection
Educating your users
Cleaning up after a virus outbreak
By the time you reach the end of this chapter, you will have a proper understanding of the types of virus that exist and why it s a good idea to use a multilayered defense system to combat viruses. Later you will learn some tips on how to educate your users to protect themselves against viruses. To finish the chapter, you ll see how to clean up after a virus outbreak using ExMerge.
Several years ago, most viruses spread primarily via infected diskettes, but with the introduction of the Internet, new methods of distribution mechanisms such as e-mail arose. Today e-mail is a vital form of communication between businesses, and for...
