Alan Schwartz

SpamAssassin (eBook, PDF)

• Format: PDF

Produktbeschreibung

The annoyance factor for individual users whose email is crammed with pitches for pornography, absurd moneymaking schemes, and dubious health products is fierce. But for organizations, the cost of spam in lost productivity and burned bandwidth is astronomical. While society is grappling with a solution to the burgeoning crisis of spam proliferation, the pressure is on system administrators to find a solution to this massive problem in-house. And fast.Sys admins can field scores of complaints and spend months testing software suites that turn out to be too aggressive, too passive, or too complicated to setup only to discover that SpamAssassin (SA), the leading open source spam-fighting tool, is free, flexible, powerful, highly-regarded, and remarkably effective. The drawback? SpamAssassin's lack of published documentation.SpamAssassin by Alan Schwartz, is the only published resource devoted to SpamAssassin and how to integrate it effectively into your networks. This clear, concise guide clarifies the installation, configuration, and use of the SpamAssassin spam-checking system (versions 2.63 and 3.0) for Unix system administrators using the Postfix, Sendmail, Exim, or qmail mail servers, helping administrators make the right integration decision for their particular environments.It covers concrete advice on how to:Customize SpamAssassin's rules, and even create new ones Train SpamAssassin's Bayesian classifier, a statistical engine for detecting spam, to optimize it for the sort of email that you typically receiveBlock specific addresses, hosts, and domains using third-party blacklists like the one maintained by Spamcop.net.Whitelist known good sources of email, so that messages from clients, coworkers, and friends aren't inadvertently lost.Configure SpamAssassin to work with newer spam-filtering methods such as Hashcash (www.hashcash.org) and Sender Policy Framework (SPF).Sys admins, network administrators, and ISPs pay for spam with hours of experimentation and tedious junk email management, frayed user tempers, and their sanity. SpamAssassin, together with this essential book, give you the tools you need to take back your organization's inboxes."e;Detailed, accurate and informative--recommended for spam-filtering beginners and experts alike."e; --Justin Mason, SpamAssassin development team

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Produktdetails

• Verlag: O'Reilly Media
• Seitenzahl: 222
• Erscheinungstermin: 20. Juli 2004
• Englisch
• ISBN-13: 9780596520960
• Artikelnr.: 52964212

Autorenporträt

Alan Schwartz, Ph.D. is an assistant professor of clinical decision making in the Departments of Medical Education and Pediatrics at the University of Illinois at Chicago. He is also the author of Managing Mailing Lists and the coauthor of Stopping Spam (both from O'Reilly). He serves as a consultant on Unix system administration for several ISPs. In his spare time, he develops and maintains the PennMUSH MUD server and brews beer and mead with his wife, with whom he also develops and maintains their son. Turn-ons for Alan include sailing, programming in Perl, playing duplicate bridge, and drinking Anchor Porter. Turn-offs include spam and watery American lagers.

Inhaltsangabe

Copyright
Preface
Scope of This Book
Versions Covered in This Book
Conventions Used in This Book
Using Code Examples
Comments and Questions
Acknowledgments
Chapter 1: Introducing SpamAssassin
1.1 How SpamAssassin Works
1.2 Organization of SpamAssassin
1.3 Mailers and SpamAssassin
1.4 The Politics of Scanning
Chapter 2: SpamAssassin Basics
2.1 Prerequisites
2.2 Building SpamAssassin
2.3 Invoking SpamAssassin with procmail
2.4 Using spamc/spamd
2.5 Invoking SpamAssassin in a Perl Script
2.6 SpamAssassin and the End User
Chapter 3: SpamAssassin Rules
3.1 The Anatomy of a Test
3.2 Modifying the Score of a Test
3.3 Writing Your Own Tests
3.4 The Built-in Tests
3.5 Whitelists and Blacklists
Chapter 4: SpamAssassin as a Learning System
4.1 Autowhitelisting
4.2 Bayesian Filtering
Chapter 5: Integrating SpamAssassin with sendmail
5.1 Spam-Checking at Delivery
5.2 Spam-Checking During SMTP
5.3 Building a Spam-Checking Gateway
Chapter 6: Integrating SpamAssassinwith Postfix
6.1 Postfix Architecture
6.2 Spam-Checking During Local Delivery
6.3 Spam-Checking All Incoming Mail
6.4 Building a Spam-Checking Gateway
Chapter 7: Integrating SpamAssassin with qmail
7.1 qmail Architecture
7.2 Spam-Checking During Local Delivery
7.3 Spam-Checking All Incoming Mail
7.4 Building a Spam-Checking Gateway
Chapter 8: Integrating SpamAssassin with Exim
8.1 Spam-Checking via procmail
8.2 Spam-Checking All Incoming Mail
8.3 Using Routers and Transports
8.4 Using exiscan
8.5 Using sa-exim
8.6 Building a Spam-Checking Gateway
Chapter 9: Using SpamAssassin as a Proxy
9.1 Using Pop3proxy
9.2 Using SAproxy Pro
Appendix A: Resources
A.1 General Spam Resources
A.2 Spam-Filtering
A.3 SpamAssassin
A.4 Mail Transport Agents
A.5 Related Mail Tools
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