Configuring sendmail

Configuring sendmail

Configuring sendmail involves these tasks:

Customize the sendmail.cf file.
Modify the aliases file.
Start the sendmail daemon.

This section provides an example for configuring a fictitious sendmail environment. The fictitious environment includes:

a stand-alone station where users can send mail locally (solitaire)
a simple isolated sendmail network with one domain (lab.fictitious.com)
a hierarchical sendmail network with relays and one domain (eng.fictitious.com)
a hierarchical sendmail network with relays and multiple domains (corp.fictitious.com and fin.fictitious.com)
a complex hierarchical sendmail network with forwarders, relays, and multiple domains (corp.fictitious.com and eng.fictitious.com)
a UUCP sendmail connection (uk.com)

Note: In the following examples, an empty macro or class has no values assigned to it. The macro or class is left blank. Figure 8-3 illustrates the fictitious sendmail environment to be used for configuring sendmail.

Figure 8-3 : sendmail Configuration Environment (Fictitious)

Customizing the sendmail.cf File
Modifying the Aliases Database
Starting the sendmail Daemon