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Chapter 1; Introducing Spam

Spam is an often-used term, but as with many terms, it means different things to different people. This chapter defines the term 'spam' as used in this book and reviews its history. By examining the economics and costs involved with spam, we will explain why spam has become so invasive to modern computing. Finally, we will describe the current legal position against spam.

Defining Spam
Spam, in computing terms, means something unwanted. It has normally been used to refer to unwanted email or Usenet messages, and it is now also being used to refer to unwanted Instant Messenger (IM) and telephone Short Message Service (SMS) messages. Spam email is unwanted, uninvited, and inevitably promotes something for sale. Often the terms junk email, Unsolicited Bulk Email (UBE), or Unsolicited Commercial Email (UCE) are used to refer to spam email. Spam generally promotes Internet-based sales, but it also occasionally promotes telephone-based or other methods of sales too.

People who specialize in sending spam are called spammers. Companies pay spammers to send emails on their behalf, and the spammers have developed a range of computerized tools and techniques to send these messages. Spammers also run their own online businesses and market them using spam email.

The term 'spam email' generally precludes email from known sources, regardless of however unwanted the content is. One example of this would be an endless list of jokes sent from acquaintances. Email viruses, trojan horses, and other malware (short for malicious software) are not normally categorized as spam either, although they share some common traits with spam. Emails that are not spam are often referred to as ham, particularly in the anti-spam community. Spam is subjective, and a message considered spam by one recipient may be welcomed by another.

Anti-spam tools can be partially effective in blocking malware, however, they are best at blocking spam. Special anti-virus software can and should be used to protect your inbox from other undesirable emails.

BOOK DETAILS   Paperback, 220 pages Released: Sept 2004 ISBN: 1904811124 Author: Alistair McDonald

TABLE OF CONTENTS

Intro
1. Introducing Spam
2. Spam and Anti-Spam Techniques
3. Open Relays
4. Protecting Email Addresses
5. Detecting Spam
6. Installing SpamAssassin
7. Configuration Files
8. Using SpamAssassin
9. Bayesian Filtering
10. Look and Feel
11. Network Tests
12. Rules
13. Improving Filtering
14. Performance
15. Housekeeping and Reporting
16. Building an Anti-Spam Gateway
17. Email Clients
18. Choosing other Spam Tools
Appendix A
Index
 

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