There is only one useful table in this chapter.
The sendmail.cf file is line-oriented, with one configuration command per line. Each configuration command consists of a single letter[22] that must begin a line. Each letter is followed by other information as required by that particular command.
The configuration file can also have lines that begin with a
# to form a comment line, or with a tab or space
character to form a continuation line. A list of all legal characters
that can begin a line in the configuration file is shown in Table 17-1.
Table 17-1. sendmail.cf configuration commands
|
Command |
sendmail text reference |
Version |
Description |
|---|---|---|---|
|
# |
17.2[3ed] |
All |
A comment line, ignored |
|
space |
17.4[3ed] |
All |
Continue the previous line |
|
tab |
17.4[3ed] |
All |
Continue the previous line |
|
C |
22.1[3ed] |
All |
Define a class macro |
|
D |
21.3[3ed] |
All |
Define a sendmail macro |
|
E |
10.2.1[3ed] |
V8.7 and above |
Environment for agents |
|
F |
22.1[3ed] |
All |
Define a class macro from a file or a pipe |
|
H |
25.1[3ed] |
All |
Define a header |
|
K |
23.2[3ed] |
V8.1 and above |
Create a keyed map entry |
|
L |
Obsolete |
Extended load average | |
|
M |
20.1[3ed] |
All |
Define a mail delivery agent |
|
O |
24.3[3ed] |
All |
Define an option |
|
P |
25.10[3ed] |
All |
Define delivery priorities |
|
Q |
11.4.2[3ed] |
V8.12 and above |
Declare queue groups |
|
R |
18.2[3ed] |
All |
Define a transformation rule |
|
S |
19.1[3ed] |
All |
Declare a rule-set start |
|
T |
10.8.1.1[3ed] |
All |
Declare trusted users (ignored V8.1 through V8.6) |
|
V |
17.5[3ed] |
V8.1 and above |
Version of configuration file |
|
X |
7.6.2[3ed] |
V8.12 and above |
Define a mail filter for use |
[22] A quick bit of trivia: initially,
there was almost nothing in the configuration file except
R rules (and there was only one rule set). Eric
Allman recalls adding M and O
fairly quickly. Commands such as K and
V came quite late.