Command-Line Switches

Command-line switches are command-line arguments that begin with a - character, and precede the list of recipients (if any). The forms for command-line switches, where X is a single letter, are:

-XBoolean switch
-Xargswitch with argument

All switches are single letters. The complete list is shown in Table 6-2.

Table 6-2. Command-line switches

Switch

§

Version

Description

-A

-A on page 231

V8.12 and later

Specify sendmail.cf versus submit.cf.

-B

-B on page 232

V8.1 and later

Specify message body type.

-b

-b on page 233

All versions

Set operating mode.

-ba

-ba on page 233

Not V8.1- V8.6

Use ARPAnet/Grey Book protocols.

-bD

-bD on page 233

V8.8 and later

Run as a daemon, but don’t fork.

-bd

-bd on page 234

All versions

Run as a daemon.

-bH

-bH on page 234

V8.8 and later

Purge persistent host status.

-bh

-bh on page 235

V8.8 and later

Print persistent host status.

-bi

Rebuild the Alias Database on page 478

All versions

Initialize alias database.

-bm

-bm on page 235

All versions

Be a mail sender (the default).

-bP

-bP on page 236

V8.12 and later

Print number of messages in the queue.

-bp

Printing the Queue on page 422

All versions

Print the queue.

-bs

-bs on page 236

All versions

Run SMTP on standard input.

-bt

Chapter 8 on page 299

All versions

Rule-testing mode.

-bv

-bv on page 237

All versions

Verify: don’t collect or deliver.

-bz

-bz on page 238

Not V8

Freeze the configuration file.

-C

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