#!/bin/sh

echo "${PWD##*/}: started."

# WORKAROUND:
#   postfix has to be aware of the DNS servers
#   without this workaround it uses 127.0.0.1:53 for some unknown (yet) reason...
[ -d /var/spool/postfix/etc ] || mkdir -v /var/spool/postfix/etc

diff -q /var/spool/postfix/etc/resolv.conf /etc/resolv.conf 2>/dev/null
[ $? -eq 0 ] || cp -v /etc/resolv.conf /var/spool/postfix/etc/resolv.conf

# run postfix consistency check and exit if failed
set -e
postfix check 2>&1

# run Postfix
set -x
exec /usr/libexec/postfix/master 2>&1
# alpine <3.9
#exec /usr/lib/postfix/master 2>&1

# Do not use 'postfix start-fg' command since it does not handle the signals,
# e.g. if you do 'sv restart postfix', postfix/master will NOT receive the
# SIGTERM signal.