Postfix postfix configuration example for Debian GNU/Linux 9 (stretch)

Get the default configuration file postfix for Postfix, optimized for Debian GNU/Linux 9 (stretch). 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/ppp/ip-up.d/postfix.

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

    #!/bin/sh -e
# Called when a new interface comes up
# Written by LaMont Jones <lamont@debian.org>

# don't bother to restart postfix when lo is configured.
if [ "$IFACE" = "lo" ]; then
	exit 0
fi

# If /usr isn't mounted yet, silently bail.
if [ ! -d /usr/lib/postfix ]; then
	exit 0
fi

RUNNING=""
# If master is running, force a queue run to unload any mail that is
# hanging around.  Yes, sendmail is a symlink...
if [ -f /var/spool/postfix/pid/master.pid ]; then
	pid=$(sed 's/ //g' /var/spool/postfix/pid/master.pid)
	exe=$(ls -l /proc/$pid/exe 2>/dev/null | sed 's/.* //;s/.*\///')
	if [ "X$exe" = "Xmaster" ]; then
		RUNNING="y"
	fi
fi

# start or reload Postfix as needed
if [ ! -x /sbin/resolvconf ]; then
	f=/etc/resolv.conf
	if ! cp $f $(postconf -hx queue_directory)$f 2>/dev/null; then
		exit 0
	fi
	if [ -n "$RUNNING" ]; then
		service postfix reload >/dev/null 2>&1
	fi
fi

# If master is running, force a queue run to unload any mail that is
# hanging around.  Yes, sendmail is a symlink...
if [ -n "$RUNNING" ]; then
	if [ -x /usr/sbin/sendmail ]; then
		/usr/sbin/sendmail -q >/dev/null 2>&1
	fi
fi

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