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Table of contents

Fighting Spam

What is Covered?

Inbound vs Outbound

“Methods”

What Solutions are Available?

Commercial Solutions

Commercial Solutions - Benefits

Commercial Solutions - Issues

Selected Firewall Vendors

Selected Commercial Services

Summary: Commercial Solutions

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Complaining

Other Methods

Some Spam Fighting Methods

Heuristics

Bayesian Analysis

Distributed Collaborative Filtering

Reputations

Domain Authentication

Whitelists/Blacklists

Dynamic Blackhole Lists

Native MTA Methods

Sender Authentication

Haiku Headers

Send Reply Message

CAPTCHA

Sender Compute/Hashcash

One Time/Limited Use Addresses

Bayesian Solutions

Client Bayesian Solutions

POPFile

Choosing a Bayesian Solution?

Server Side Bayesian

DSPAM

bogofilter

CRM114

SpamAssassin 2.x Overview

SA Message Disposition

SA Requirements

Configuring SA

Global, Privileged, Admin-only

Types of Parameters

Selected user_prefs

Customized Rule

Customized Rule Score

What’s New in SA 3.0?

Reputations - GOSSiP

GOSSiP

GOSSiP (2)

GOSSiP (3)

Spam Fun

Conclusions

Wrap Up/Questions

Author: Robert Haskins

E-mail: rhaskins@cnetwork.com

Homepage: http://slammingspam.com/

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