Postfix postfix configuration example for Ubuntu 12.04 LTS (Precise Pangolin)

Get the default configuration file postfix for Postfix, optimized for Ubuntu 12.04 LTS (Precise Pangolin). This example configuration ensures optimal compatibility and performance for Postfix, making it easy to set up and adjust to meet your needs.

Find and download the configuration file here: /etc/init.d/postfix.

For more configurations and setup guides, visit our related files section to further customize your system.

    #!/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: start and stop the 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

# Defaults - don't touch, edit /etc/default/postfix
SYNC_CHROOT="y"

test -f /etc/default/postfix && . /etc/default/postfix

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 -h queue_directory 2>/dev/null || echo /var/spool/postfix)
    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/usr/lib/postfix" ]; then
	    echo y
	fi
    fi
}

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


    # if you set myorigin to 'ubuntu.com' or 'debian.org', it's wrong, and annoys the admins of
    # those domains.  See also sender_canonical_maps.

    MYORIGIN=$($POSTCONF -h myorigin | tr 'A-Z' 'a-z')
    if [ "X${MYORIGIN#/}" != "X${MYORIGIN}" ]; then
	MYORIGIN=$(tr 'A-Z' 'a-z' < $MYORIGIN)
    fi
    if [ "X$MYORIGIN" = Xubuntu.com ] || [ "X$MYORIGIN" = Xdebian.org ]; then
	log_failure_msg "Invalid \$myorigin ($MYORIGIN), refusing to start"
	log_end_msg 1
	exit 1
    fi

    config_dir=$($POSTCONF -h config_directory)
    # see if anything is running chrooted.
    NEED_CHROOT=$(awk '/^[0-9a-z]/ && ($5 ~ "[-yY]") { print "y"; exit}' ${config_dir}/master.cf)

    if [ -n "$NEED_CHROOT" ] && [ -n "$SYNC_CHROOT" ]; then
	# Make sure that the chroot environment is set up correctly.
	oldumask=$(umask)
	umask 022
	queue_dir=$($POSTCONF -h queue_directory)
	cd "$queue_dir"

	# copy the CA path if specified
	ca_path=$($POSTCONF -h smtp_tls_CApath)
	case "$ca_path" in
	    '') :;; # no ca_path
	    $queue_dir/*) :;;  # skip stuff already in chroot
	    *)
		if test -d "$ca_path"; then
		    dest_dir="$queue_dir/${ca_path#/}"
		    new=0
		    if test -d "$dest_dir"; then
			# write to a new directory ...
			dest_dir="${dest_dir%/}.NEW"
			new=1
		    else
			mkdir --parent ${dest_dir%/*}
		    fi
		    # handle files in subdirectories
		    (cd "$ca_path" && find . -name '*.pem' -print0 | cpio -0pdL --quiet "$dest_dir") 2>/dev/null || 
		        (log_failure_msg failure copying certificates; exit 1)
		    c_rehash "$dest_dir" >/dev/null 2>&1
		    if [ "$new" = 1 ]; then
			# and replace the old directory
			rm -r "${dest_dir%.NEW}"
			mv "$dest_dir" "${dest_dir%.NEW}"
		    fi
		fi
		;;
	esac

	# if there is a CA file, copy it
	ca_file=$($POSTCONF -h smtp_tls_CAfile)
	case "$ca_file" in
	    $queue_dir/*) :;;  # skip stuff already in chroot
	    '') # no ca_file
		# or copy the bundle to preserve functionality
		ca_bundle=/etc/ssl/certs/ca-certificates.crt
		if [ -f $ca_bundle ]; then
		    mkdir --parent "$queue_dir/${ca_bundle%/*}"
		    cp -L "$ca_bundle" "$queue_dir/${ca_bundle%/*}"
		fi
		;;
	    *)
		if test -f "$ca_file"; then
		    dest_dir="$queue_dir/${ca_path#/}"
		    mkdir --parent "$dest_dir"
		    cp -L "$ca_file" "$dest_dir"
		fi
		;;
	esac

	# if we're using unix:passwd.byname, then we need to add etc/passwd.
	local_maps=$($POSTCONF -h local_recipient_maps)
	if [ "X$local_maps" != "X${local_maps#*unix:passwd.byname}" ]; then
	    if [ "X$local_maps" = "X${local_maps#*proxy:unix:passwd.byname}" ]; then
		sed 's/^\([^:]*\):[^:]*/\1:x/' /etc/passwd > etc/passwd
		chmod a+r etc/passwd
	    fi
	fi

	FILES="etc/localtime etc/services etc/resolv.conf etc/hosts \
	    etc/nsswitch.conf etc/nss_mdns.config"
	for file in $FILES; do
	    [ -d ${file%/*} ] || mkdir -p ${file%/*}
	    if [ -f /${file} ]; then rm -f ${file} && cp /${file} ${file}; fi
	    if [ -f  ${file} ]; then chmod a+rX ${file}; fi
	done
	# ldaps needs this. debian bug 572841
	echo -e /dev/random\\n/dev/urandom | cpio -pdL --quiet . 2>/dev/null || true
	rm -f usr/lib/zoneinfo/localtime
	mkdir -p usr/lib/zoneinfo
	ln -sf /etc/localtime usr/lib/zoneinfo/localtime

	LIBLIST=$(for name in gcc_s nss resolv; do
	    for f in /lib/*/lib${name}*.so* /lib/lib${name}*.so*; do
	       if [ -f "$f" ]; then  echo ${f#/}; fi;
	    done;
	done)

	if [ -n "$LIBLIST" ]; then
	    for f in "$LIBLIST"; do
		rm -f "$f"
	    done
	    tar cf - -C / $LIBLIST 2>/dev/null |tar xf -
	fi
	umask $oldumask
    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
		configure_instance $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

    Copy