Problem Solving

The sendmail program offers a few options that will help in locating and solving some mail delivery problems. Table 24-11 lists the available options.

Table 24-11. Options that help with problem solving

Option name

 

§

Description

CheckAliases

(n)

CheckAliases on page 982

Check RHS of aliases.

DoubleBounceAddress

 

DoubleBounceAddress on page 1025

Errors when sending errors.

LogLevel

(L)

LogLevel on page 1040

Set (increase) the logging level.

PostmasterCopy

(P)

PostmasterCopy on page 1064

Extra copies of bounce messages (not V5 BSD).

Verbose

(v)

Verbose on page 1117

Run in verbose mode.

Other means to solve problems are described in Chapter 15 on page 530, which discusses the -d debugging command-line switch, and in Chapter 14 (specifically Log Transactions with -X on page 512), which covers the -X traffic-logging command-line switch.

Get sendmail, 4th Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.