The following is a list of additional documentation about email
11.6.1. Installed Documentation
Information on configuring Sendmail is included with the
sendmail and sendmail-cf
— Contains information on m4, file
locations for Sendmail, supported mailers, how to access
enhanced features, and more.
Contains information on the Sendmail directory structure,
IDENT protocol support, details on directory permissions, and
the common problems these permissions can cause if
In addition, the sendmail and
aliases man pages contain helpful information
covering various Sendmail options and the proper configuration of
the Sendmail /etc/mail/aliases file.
— Contains a full list of Fetchmail features in the
FEATURES file and an introductory
— Contains a README file that provides
an overview of Procmail, a FEATURES file that
explores every program feature, and an FAQ
file with answers to many common configuration questions.
When learning how Procmail works and creating new recipes, the
following Procmail man pages are invaluable:
procmail — Provides an overview of
how Procmail works and the steps involved with filtering
procmailrc — Explains the
rc file format used to construct
procmailex — Gives a number of
useful, real-world examples of Procmail recipes.
procmailsc — Explains the weighted
scoring technique used by Procmail to see if a particular
recipe matches a certain message.
— This directory contains a large amount of information
pertaining to SpamAssassin. Replace
<version-number> with the
version number of the spamassassin
— Contains dozens of tips that make using Procmail much
easier. Includes instructions on how to test
.procmailrc files and use Procmail scoring to
decide if a particular action should be taken.
Sendmail by Bryan Costales with Eric Allman
et al; O'Reilly & Associates — A good Sendmail
reference written with the assistance of the original creator of
Delivermail and Sendmail.
Removing the Spam: Email Processing and
Filtering by Geoff Mulligan; Addison-Wesley Publishing
Company — A volume that looks at various methods used by
email administrators using established tools, such as Sendmail and
Procmail, to manage spam problems.
Internet Email Protocols: A Developer's
Guide by Kevin Johnson; Addison-Wesley Publishing
Company — Provides a very thorough review of major email
protocols and the security they provide.
Managing IMAP by Dianna Mullet and Kevin
Mullet; O'Reilly & Associates — Details the steps required
to configure an IMAP server.