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The first part of this book is a tutorial intended mainly for those with a
limited understanding of sendmail. Its aim is to provide the
novice with a general introduction to V8 sendmail. - Chapter 1, Introduction
Covers mail transfer agents and mail user agents,
explains why sendmail is so complex, gives an overview
of sendmail, and
describes the differences between the header, body, and envelope of
a mail message. - Chapter 2, Have a V8
Shows where and how to get the source for V8 sendmail
and how to compile and test a working binary. - Chapter 3, The Roles of sendmail
Shows how sendmail processes aliases, queues messages for later
transmission, does local and remote delivery,
and runs in the background listening for incoming mail. - Chapter 4, How to Run sendmail
Illustrates use of the -b (become), -v (verbose), and
-d (debugging) command-line switches. - Chapter 5, The sendmail.cf File
Provides a quick overview of all the commands found in the sendmail.cf
file. - Chapter 6, The Mail Hub and Delivery Agents
Describes the hub approach and shows how M (delivery agent)
commands can be used to forward mail to a central hub machine. - Chapter 7, Macros
Shows how text can be automatically propagated throughout
the configuration file. - Chapter 8, Addresses and Rules
Describes a fictional network, then uses addresses in that network
to illustrate rules and rule sets. - Chapter 9, Rule Set 0
Shows how rules in rule set 0 can select delivery agents
and handle errors. - Chapter 10, Rule Set 3
Explains rule set 3, the first to rewrite all addresses. - Chapter 11, Rule Sets 1 and S=
Develops an S= rule set to make all mail appear as though it
comes from the hub machine. - Chapter 12, Class
Shows how multiple values can be referenced with a single expression in
the LHS of rules. - Chapter 13, Setting Options
Explains how options "tune" sendmail and offers a few suggestions. - Chapter 14, Headers, Precedence, and Trust
Completes the client.cf file by adding H, P, and
T commands. - Chapter 15, Install and Test the client.cf File
Shows how to install the client.cf file as your working configuration
file. - Chapter 16, The null.mc File and m4
Shows how m4 can be used to produce a client.cf file
called nullclient. - Chapter 17, The Hub's Complex Rules
Concludes with a tour of a hub's major sendmail.cf
file.
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