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Sendmail, 3rd Edition by Bryan Costales

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Part III. The Configuration File

The third part of this book provides a comprehensive reference for the configuration file.

Chapter 17

Presents an overview of the sendmail.cf file. Comments, joined lines, and the V configuration command are detailed.

Chapter 18

Shows how the workspace is rewritten by individual rules. Operators, such as $*, are explained here.

Chapter 19

Covers the flow of addresses through rule sets, and illustrates the special uses of rule sets 0 through 5, as well as the check_ rule sets.

Chapter 20

Shows how to define mail delivery agents with the M configuration command. The F= flags are also listed.

Chapter 21

Shows how to define and use macros. Includes an explanation of all macros currently in use.

Chapter 22

Shows how multiple values can be stored in class macros. The special uses of the $= and $~ prefixes are also shown.

Chapter 23

Shows how to create, declare, and use external databases, internal maps, and network maps.

Chapter 24

Shows how to declare options from the command line and in the configuration file. Then every option is explained.

Chapter 25

Describes the legal contents and form of headers in email messages and in the H configuration command.

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