Postfix postfix configuration example for Ubuntu 16.04 LTS (Xenial Xerus)

Get the default configuration file postfix for Postfix, optimized for Ubuntu 16.04 LTS (Xenial Xerus). 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/network/if-down.d/postfix.

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

    #!/bin/sh -e

# Called when an interface disconnects
# Written by LaMont Jones <lamont@debian.org>

# start or reload Postfix as needed

# 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

if [ ! -x /sbin/resolvconf ]; then
	f=/etc/resolv.conf
	if ! cp $f $(postconf -h queue_directory)$f 2>/dev/null; then
		exit 0
	fi
	if [ -n "$RUNNING" ]; then
		/etc/init.d/postfix reload >/dev/null 2>&1
	fi
fi

exit 0

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