Typically Used sendmail.m4 Parameters

A few or the items in the sendmail.m4 file are required all the time; others can be ignored if you can get away with defaults. The following sections describe each of the items in the example sendmail.m4 file in more detail.

• Items that Define Paths
• Defining the Local Mailer
• Dealing with Bounced Mail
• Domain Name Service Related Items
• Defining Names the Local System is Known by
• UUCP-Related Items
• Relay Systems and Mailers
• The Various Configuration Tables
• The Master Sendmail.mc File
• So Which Entries are Really Required?