SpamAssassin: A practical guide to integration and configuration. In depth guide to implementing antispam solutions using SpamAssassin Alistair McDonald, Brian Fitzpatrick

Spis treści książki

• SpamAssassin
  • Table of Contents
  • SpamAssassin
  • Credits
  • About the Author
  • About the Reviewers
  • Introduction
    • What This Book Covers
    • What You Need for Using This Book
    • Conventions
    • Reader Feedback
    • Customer Support
    • Downloading the Example Code for the Book
    • Errata
    • Questions
  • 1. Introducing Spam
    • Defining Spam
      • Definitions
      • The History of Spam
      • Spammers
    • The Costs of Spam
      • Costs to the Spammer
      • Costs to the Recipient
    • Spam and the Law
    • Summary
  • 2. Spam and Anti-Spam Techniques
    • Spamming Techniques
      • Open Relay Exploitation
      • Collecting Email Addresses
      • Hiding Content
      • Statistical Filter Poisoning
      • Unique Email Generation
      • Trojanned Machines
    • Anti-Spam Techniques
      • Keyword Filters
      • Open Relay Blacklists (ORBLs)
      • ISP Complaints
      • Statistical Filters
      • Email Header Analysis
      • Non-Spam Content Tests
      • Whitelists
      • Email Content Databases
      • Sender Validation Systems
      • Sender Policy Framework (SPF)
    • Spam Filtering Services
      • Collect and Forward
      • Collect and Return
      • Send and Forward
      • Choosing an Anti-Spam Service Provider
      • ISP-Provided Services
    • Anti-Spam Tools
      • SpamAssassin
        • How SpamAssassin Works
        • Easy to Use
        • Techniques Used by SpamAssassin
    • Summary
  • 3. Open Relays
    • Email Delivery
    • Open Relay Tests
      • Automated Open Relay Testers
      • Manual Open Relay Testing
    • MTA Configuration
      • Sendmail
        • Sendmail Versions 8.9 and Above
        • Sendmail Versions Below 8.9
      • Postfix
        • The mynetworks Configuration Directive
        • The relay_domains Configuration Directive
      • Exim
        • Exim Configuration Parameters
      • qmail
    • Summary
  • 4. Protecting Email Addresses
    • Websites
      • Alternative Character Representations
      • JavaScript
    • Usenet
    • Trojan Software
    • Mailing Lists and Archives
    • Registration for Websites
      • Tracking Email Address Usage
        • Sendmail Plus Technique
      • Rogue Employees
    • Employees
    • Business Cards and Promotional Material
    • How Spammers Verify Email Addresses
      • Web Bugs
    • Summary
  • 5. Detecting Spam
    • Content Tests
    • Header Tests
    • DNS-Based Blacklists
    • Statistical Tests
    • Message Recognition
    • URL Recognition
    • Examining Headers
      • Faked Headers
    • Reporting Spammers
    • Valid Bulk Email Delivery
    • Summary
  • 6. Installing SpamAssassin
    • Building from Source
      • Prerequisites
        • Checking Current Configuration
        • Installing Perl
        • Installing CPAN
      • Testing for a C Compiler
    • Using CPAN
    • Installing by Hand
    • Resolving Build Failures
    • Packaged Distributions
      • RPM
      • Debian
      • Gentoo
      • Other Formats
      • Windows
    • Verifying the Installation
    • Upgrading
    • Uninstalling
      • Uninstalling from Source
        • Using CPANPLUS
      • Other Packages
      • Uninstalling on Windows
    • SpamAssassin Components
      • Executables
      • Perl Modules
      • Documentation
    • Summary
  • 7. Configuration Files
    • Configuration Files
      • Standard Configuration
      • Site-Wide Configuration
      • User-Specific Configuration
    • Rule Files
      • Rules
      • Scores
    • Summary
  • 8. Using SpamAssassin
    • SpamAssassin as a Daemon
      • Creating a User Account
    • SpamAssassin and Procmail
      • Testing for Procmail
      • Obtaining and Installing Procmail
      • Configuring Procmail
      • MTA Configuration
        • sendmail
        • Postfix
        • Exim
        • qmail
      • Configuring User Accounts
      • Site-Wide Procmail Usage
    • Integrating SpamAssassin into the MTA
      • Sendmail
        • Sendmail Milter Support
      • MIMEDefang
      • Postfix
      • Exim
      • qmail
    • Testing and Troubleshooting
      • Check the MTA
        • Further Diagnosis
    • Rejecting Spam
    • Summary
  • 9. Bayesian Filtering
    • Scoring
    • Training
    • Confirming Operation
    • Filter Training
      • User Involvement
      • Local Users
      • Unlearning
      • Auto-learn Thresholds
      • Bayesian Database Files
      • Removing a Bayesian Database
      • Sharing a Bayesian Database
    • Disabling Bayesian Filtering
    • Summary
  • 10. Look and Feel
    • Headers
      • Changing Headers
      • Creating Headers
      • Removing Headers
    • Reports
      • Enabling and Disabling Reports
      • Changing Reports
    • Subject Rewriting
    • Summary
  • 11. Network Tests
    • RBLs
    • SURBLs
      • SpamAssassin 2.63
    • Vipuls Razor
      • Installing Razor
      • Configuring Razor
      • Configuring SpamAssassin
      • Testing Razor
    • Pyzor
      • Installing Pyzor
      • Configuring Pyzor
      • Configuring SpamAssassin
      • Testing Pyzor
      • Pyzor Headers
    • DCC
      • Installing DCC
      • Configuring SpamAssassin
      • Testing DCC
      • DCC Headers
    • Spamtraps
      • Choosing a Spamtrap Address
      • Baiting the Spamtrap
      • Configuring the Email Account
    • Summary
  • 12. Rules
    • Writing Rules
      • Rules Performance
      • Meta Rules
      • Writing Positive Rules
        • Examples of Positive Rules
      • Rawbody Rules
        • Using a Corpus to Test Rules and Scoring
        • Corpus Development
        • The Public Corpus
        • Testing SpamAssassin on a Corpus
        • Examining Hit Frequencies
    • Using Other Rulesets
    • Summary
  • 13. Improving Filtering
    • Whitelists and Blacklists
      • Manual Whitelisting and Blacklisting
      • Whitelisting Domains
    • The Auto-Whitelist
    • Resolving Incorrect Classifications
      • Examining Messages
      • Changing the Spam Threshold
      • Re-weighting Test Scores
        • Increasing the Score of Spam Emails
        • Coping with False Positives
      • Bayesian Unlearning and Relearning
    • Character Sets and Languages
      • Disallowing Languages
      • Disallowing Character Sets
    • Summary
  • 14. Performance
    • Bottlenecks
      • Memory
        • CPUs
      • Disk I/O
        • Network I/O
      • Determining Bottlenecks
    • Performance Improvement Methodology
      • Using the SpamAssassin Daemon
      • Integrating SpamAssassin into the MTA
      • Omitting Messages
        • Large Messages
      • Disabling Tests
      • Running Network-Based Tests First
        • Razor, Pyzor, and DCC
      • Using Additional Machines
      • Faster File Locking
    • Using SQL
      • Requirements
      • MySQL
        • Configuration
      • Spamd with SQL
      • SQL for User Preferences
        • Adding New User Preferences
        • Displaying User Preferences
        • Altering User Preferences
        • Deleting User Preferences
        • Testing if SQL User Preferences Are Being Used
        • Preference Precedence
      • SQL for Bayesian Databases
        • Testing if the SQL Bayesian Database Is Being Used
      • The Auto-Whitelist Database
        • Testing if the SQL Auto-Whitelist Database Is Being Used
    • Summary
  • 15. Housekeeping and Reporting
    • Separating Levels of Spam
    • Detecting When SpamAssassin Fails
    • Spam and Ham Reports
      • Spam Counter
        • Keeping Statistics Over a Period of Time
      • Determining SpamAssassin Processing Time
    • Summary
  • 16. Building an Anti-Spam Gateway
    • Choosing a PC Platform
    • Choosing a Linux Distribution
      • Installing Linux
    • Configuring Postfix
      • Accepting Email for the Domain
      • Mail for the root User
      • Basic Spam Filtering with Postfix
      • Forwarding Email to the Original Email Server
      • Reloading Postfix
      • Testing Postfix
    • Installing Amavisd-new
      • Installation from Package
      • Installing Prerequisites
      • Installing from Source
      • Creating a User Account for Amavisd-new
    • Configuring Amavisd-new
    • Configuring Postfix to Run Amavisd-new
    • Configuring External Services
    • Firewall Configuration
    • Backups
    • Testing
    • Going Live
    • Summary
  • 17. Email Clients
    • General Configuration Rules
    • Microsoft Outlook
    • Microsoft Outlook Express
    • Mozilla Thunderbird
    • Qualcomm Eudora
    • Summary
  • 18. Choosing Other Spam Tools
    • Spam Policies
    • Evaluating Spam Filters
    • Configuring the Second Filter
      • Using a Single Machine
      • Using Separate Machines
        • Sendmail
        • Postfix
        • Exim
        • qmail
    • Other Techniques
      • Greylisting
      • SPF
      • Sender Validation
    • Summary
  • A. Glossary
  • Index

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