Table of Contents

Introduction And Example

A Brief Introduction To M4

File Locations

OSTYPE

DOMAINs

MAILERs

FEATURES

HACKs

Site Configuration

Using UUCP Mailers

Tweaking Rulesets

Masquerading And Relaying

Using LDAP For Aliases, Maps, And Classes

LDAP Routing

Anti-Spam Configuration Control

STARTTLS

SMTP AUTHentication

Adding New Mailers Or Rulesets

Adding New Mail Filters

Queue Group Definitions

Non-SMTP Based Configurations

Who Am I?

Accepting Mail For Multiple Names

Using Mailertables

Using Userdb To Map Full Names

Miscellaneous Special Features

Security Notes

Tweaking Configuration Options

Message Submission Program

Format Of Files And Maps

Directory Layout

Administrative Details

Keyword And Macro Index