/etc/init.d/postfix - Ubuntu 18.04 LTS (Bionic Beaver)

This is the default example configuration of postfix provided by Postfix. This config file was generated by Postfix running on Ubuntu 18.04.

It is located under: /etc/init.d/postfix

    #!/bin/sh -e

# Start or stop Postfix
#
# LaMont Jones <lamont@debian.org>
# based on sendmail's init.d script

### BEGIN INIT INFO
# Provides:          postfix mail-transport-agent
# Required-Start:    $local_fs $remote_fs $syslog $named $network $time
# Required-Stop:     $local_fs $remote_fs $syslog $named $network
# Should-Start:      postgresql mysql clamav-daemon postgrey spamassassin saslauthd dovecot
# Should-Stop:       postgresql mysql clamav-daemon postgrey spamassassin saslauthd dovecot
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Postfix Mail Transport Agent
# Description:       postfix is a Mail Transport agent
### END INIT INFO

PATH=/bin:/usr/bin:/sbin:/usr/sbin
DAEMON=/usr/sbin/postfix
NAME=Postfix
TZ=
unset TZ

test -x $DAEMON && test -f /etc/postfix/main.cf || exit 0

. /lib/lsb/init-functions
#DISTRO=$(lsb_release -is 2>/dev/null || echo Debian)

enabled_instances() {
	postmulti -l -a | awk '($3=="y") { print $1}'
}

running() {
    INSTANCE="$1"
    if [ "X$INSTANCE" = X ]; then
	    POSTCONF="postconf"
    else
	    POSTCONF="postmulti -i $INSTANCE -x postconf"
    fi

    queue=$($POSTCONF -hx queue_directory 2>/dev/null || echo /var/spool/postfix)
    daemondir=$($POSTCONF -hx daemon_directory 2>/dev/null || echo /usr/lib/postfix/sbin)
    if [ -f ${queue}/pid/master.pid ]; then
	pid=$(sed 's/ //g' ${queue}/pid/master.pid)
	# what directory does the executable live in.  stupid prelink systems.
	dir=$(ls -l /proc/$pid/exe 2>/dev/null | sed 's/.* -> //; s/\/[^\/]*$//')
	if [ "X$dir" = "X${daemondir}" ]; then
	    echo y
	fi
    fi
}

case "$1" in
    start)
	log_daemon_msg "Starting Postfix Mail Transport Agent" postfix
	RET=0
	# for all instances that are not already running, handle chroot setup if needed, and start
	for INSTANCE in $(enabled_instances); do
	    RUNNING=$(running $INSTANCE)
	    if [ "X$RUNNING" = X ]; then
		/usr/lib/postfix/configure-instance.sh $INSTANCE
		CMD="/usr/sbin/postmulti -- -i $INSTANCE -x ${DAEMON}"
		if ! start-stop-daemon --start --exec $CMD quiet-quick-start; then
		    RET=1
		fi
	    fi
	done
	log_end_msg $RET
    ;;

    stop)
	log_daemon_msg "Stopping Postfix Mail Transport Agent" postfix
	RET=0
	# for all instances that are not already running, handle chroot setup if needed, and start
	for INSTANCE in $(enabled_instances); do
	    RUNNING=$(running $INSTANCE)
	    if [ "X$RUNNING" != X ]; then
		CMD="/usr/sbin/postmulti -i $INSTANCE -x ${DAEMON}"
		if ! ${CMD} quiet-stop; then
		    RET=1
		fi
	    fi
	done
	log_end_msg $RET
    ;;

    restart)
        $0 stop
        $0 start
    ;;

    force-reload|reload)
	log_action_begin_msg "Reloading Postfix configuration"
	if ${DAEMON} quiet-reload; then
	    log_action_end_msg 0
	else
	    log_action_end_msg 1
	fi
    ;;

    status)
	ALL=1
	ANY=0
	# for all instances that are not already running, handle chroot setup if needed, and start
	for INSTANCE in $(enabled_instances); do
	    RUNNING=$(running $INSTANCE)
	    if [ "X$RUNNING" != X ]; then
	    	ANY=1
	    else
	    	ALL=0
	    fi
	done
	# handle the case when postmulti returns *no* configured instances
	if [ $ANY = 0 ]; then
	   ALL=0
	fi
	if [ $ALL = 1 ]; then
	   log_success_msg "postfix is running"
	   exit 0
	elif [ $ANY = 1 ]; then
	   log_success_msg "some postfix instances are running"
	   exit 0
	else
	   log_success_msg "postfix is not running"
	   exit 3
	fi
    ;;

    flush|check|abort)
	${DAEMON} $1
    ;;

    *)
	log_action_msg "Usage: /etc/init.d/postfix {start|stop|restart|reload|flush|check|abort|force-reload|status}"
	exit 1
    ;;
esac

exit 0

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