#!/bin/sh touch /tmp/vhost.tmp # Getting domains from mail accounts if [ -f /tmp/docker-mailserver/postfix-accounts.cf ]; then while IFS=$'|' read login pass do domain=$(echo ${login} | cut -d @ -f2) echo ${domain} >> /tmp/vhost.tmp done < /tmp/docker-mailserver/postfix-accounts.cf fi # Getting domains from mail aliases if [ -f /tmp/docker-mailserver/postfix-virtual.cf ]; then while read from to do # Setting variables for better readability uname=$(echo ${from} | cut -d @ -f1) domain=$(echo ${from} | cut -d @ -f2) # if they are equal it means the line looks like: "user1 other@domain.tld" test "$uname" != "$domain" && echo ${domain} >> /tmp/vhost.tmp done < /tmp/docker-mailserver/postfix-virtual.cf fi # Keeping unique entries if [ -f /tmp/vhost.tmp ]; then cat /tmp/vhost.tmp | sort | uniq > /tmp/vhost && rm /tmp/vhost.tmp fi # Exit if no entries found if [ ! -f /tmp/vhost ]; then echo "No entries found, no keys to make" exit 0 fi grep -vE '^(\s*$|#)' /tmp/vhost | while read domainname; do mkdir -p /tmp/docker-mailserver/opendkim/keys/$domainname if [ ! -f "/tmp/docker-mailserver/opendkim/keys/$domainname/mail.private" ]; then echo "Creating DKIM private key /tmp/docker-mailserver/opendkim/keys/$domainname/mail.private" opendkim-genkey --subdomains --domain=$domainname --selector=mail -D /tmp/docker-mailserver/opendkim/keys/$domainname fi # Write to KeyTable if necessary keytableentry="mail._domainkey.$domainname $domainname:mail:/etc/opendkim/keys/$domainname/mail.private" if [ ! -f "/tmp/docker-mailserver/opendkim/KeyTable" ]; then echo "Creating DKIM KeyTable" echo $keytableentry > /tmp/docker-mailserver/opendkim/KeyTable else if ! grep -q "$keytableentry" "/tmp/docker-mailserver/opendkim/KeyTable" ; then echo $keytableentry >> /tmp/docker-mailserver/opendkim/KeyTable fi fi # Write to SigningTable if necessary signingtableentry="*@$domainname mail._domainkey.$domainname" if [ ! -f "/tmp/docker-mailserver/opendkim/SigningTable" ]; then echo "Creating DKIM SigningTable" echo "*@$domainname mail._domainkey.$domainname" > /tmp/docker-mailserver/opendkim/SigningTable else if ! grep -q "$signingtableentry" "/tmp/docker-mailserver/opendkim/SigningTable" ; then echo $signingtableentry >> /tmp/docker-mailserver/opendkim/SigningTable fi fi done # Creates TrustedHosts if missing if [ -d "/tmp/docker-mailserver/opendkim" ] && [ ! -f "/tmp/docker-mailserver/opendkim/TrustedHosts" ]; then echo "Creating DKIM TrustedHosts"; echo "127.0.0.1" > /tmp/docker-mailserver/opendkim/TrustedHosts echo "localhost" >> /tmp/docker-mailserver/opendkim/TrustedHosts fi