Spam Tools That Work

The Problem - Volume

The Problem - Techniques

Solutions at the Destination

Terminology Identifying Spam

Blackhole Lists

Blackhole Lists

RBL+ at mail-abuse.org

Other Black lists

Checksum & Signature Databases

Checksum & Signature Databases

Vipul’s Razor

The DCC

Content Analyzers

Content Analyzers

Bogofilter

Composite Analyzers

Composite Analyzers

Spam Assassin

How to use Spam Assassin

Installing Spam Assassin - user

Using Spam Assassin - user

Example spam message headers

SA Preferences

Installing Spam Assassin - site

Installing Spam Assassin - site

Installing Spam Assassin - site

Installing Spam Assassin - site

Spamass Milter vs. Procmail

Spamass Milter

Installing Spamass Milter

Sendmail Milters – outgoing mail

Spamd and Spamc

Procmail to spamd - site

Spam Assassin Local Configuration

Example spam message headers

Example clean message headers

What Next?

Adding white and black lists

Customizing SA rules

Examples rules

Adding Checksum Tests

SpamAssassin False Positives

SpamAssassin False Negatives

Statistics

Cases

Cases

Issues