RC.SENDMAIL(8) | FreeBSD System Manager's Manual | RC.SENDMAIL(8) |
NAME
rc.sendmail — sendmail(8) startup scriptDESCRIPTION
The rc.sendmail script is used by /etc/rc at boot time to start sendmail(8). It is meant to be sendmail(8) specific and not a generic script for all MTAs. It is only called by /etc/rc if the rc.conf(5) mta_start_script variable is set to /etc/rc.sendmail.The rc.sendmail script can take an optional argument specifying the action to perform. The available actions are:
- start
- Starts both the MTA and the MSP queue runner.
- stop
- Stops both the MTA and the MSP queue runner.
- restart
- Restarts both the MTA and the MSP queue runner.
- start-mta
- Starts just the MTA.
- stop-mta
- Stops just the MTA.
- restart-mta
- Restarts just the MTA.
- start-mspq
- Starts just the MSP queue runner.
- stop-mspq
- Stops just the MSP queue runner.
- restart-mspq
- Restarts just the MSP queue runner.
If no action is specified, start is assumed.
The rc.sendmail script is also used by /etc/mail/Makefile to enable the Makefile's start, stop, and restart targets.
RC.CONF VARIABLES
The following variables affect the behavior of rc.sendmail. They are defined in /etc/defaults/rc.conf and can be changed in /etc/rc.conf.- sendmail_enable
-
(
str) If set to “
YES
”, run the sendmail(8) daemon at system boot time. If set to “NO
”, do not run a sendmail(8) daemon to listen for incoming network mail. This does not preclude a sendmail(8) daemon listening on the SMTP port of the loopback interface. The “NONE
” option is deprecated and should not be used. It will be removed in a future release. - sendmail_cert_create
-
(
str) If
sendmail_enable is set to “
YES
”, create a signed certificate /etc/mail/certs/host.cert representing /etc/mail/certs/host.key by the CA certificate in /etc/mail/certs/cacert.pem. This will enable connecting hosts to negotiate STARTTLS allowing incoming email to be encrypted in transit. sendmail(8) needs to be configured to use these generated files. The default configuration in /etc/mail/freebsd.mc has the required options in it. - sendmail_cert_cn
-
(
str) If
sendmail_enable is set to “
YES
” and sendmail_cert_create is set to “YES
”, this is the Common Name (CN) of the certificate that will be created. If sendmail_cert_cn is not set, the system's hostname will be used. If there is no hostname set, “amnesiac
” will be used. - sendmail_flags
-
(
str) If
sendmail_enable is set to “
YES
”, these are the flags to pass to the sendmail(8) daemon. - sendmail_submit_enable
-
(
bool) If set to “
YES
” and sendmail_enable is set to “NO
”, run sendmail(8) using sendmail_submit_flags instead of sendmail_flags. This is intended to allow local mail submission via a localhost-only listening SMTP service required for running sendmail(8) as a non-set-user-ID binary. Note that this does not work inside jail(2) systems, as jails do not allow binding to just the localhost interface. - sendmail_submit_flags
-
(
str) If
sendmail_enable is set to “
NO
” and sendmail_submit_enable is set to “YES
”, these are the flags to pass to the sendmail(8) daemon. - sendmail_outbound_enable
-
(
bool) If set to “
YES
” and both sendmail_enable and sendmail_submit_enable are set to “NO
”, run sendmail(8) using sendmail_outbound_flags instead of sendmail_flags. This is intended to allow local mail queue management for systems that do not offer a listening SMTP service. - sendmail_outbound_flags
-
(
str) If both
sendmail_enable and
sendmail_submit_enable are set to “
NO
” and sendmail_outbound_enable is set to “YES
”, these are the flags to pass to the sendmail(8) daemon. - sendmail_msp_queue_enable
-
(
bool) If set to “
YES
”, start a client (MSP) queue runner sendmail(8) daemon at system boot time. As of sendmail 8.12, a separate queue is used for command line submissions. The client queue runner ensures that nothing is left behind in the submission queue. - sendmail_msp_queue_flags
-
(
str) If
sendmail_msp_queue_enable is set to “
YES
”, these are the flags to pass to the sendmail(8) daemon.
These variables are used to determine how the sendmail(8) daemons are started:
# MTA if (${sendmail_enable} == NONE) # Do nothing else if (${sendmail_enable} == YES) start sendmail with ${sendmail_flags} else if (${sendmail_submit_enable} == YES) start sendmail with ${sendmail_submit_flags} else if (${sendmail_outbound_enable} == YES) start sendmail with ${sendmail_outbound_flags} endif # MSP Queue Runner if (${sendmail_enable} != NONE && [ -r /etc/mail/submit.cf] && ${sendmail_msp_queue_enable} == YES) start sendmail with ${sendmail_msp_queue_flags} endif
To completely prevent any sendmail(8) daemons from starting, you must set the following variables in /etc/rc.conf:
sendmail_enable="NO" sendmail_submit_enable="NO" sendmail_outbound_enable="NO" sendmail_msp_queue_enable="NO"
HISTORY
The rc.sendmail file appeared in FreeBSD 4.6.October 19, 2013 | FreeBSD |