A set of scripts for creating files for Exim sending messages with IP assigned to other users

How to make Exim to send messages with IP assigned to other users is described here. And here in the article you can find some bash scripts for generating files with IP data automatically. Or you can use them with cron.

A script for creating /etc/virtual/domainips

#!/bin/bash#
# by Alex S Grebenschikov (support@poralix.com)
# v.0.1.2 2014-03-08
#


get_ip() {
    ip=`grep "^ip=" /usr/local/directadmin/data/users/$owner/domains/$domain.conf | cut -d\= -f2`
}


if [ -f "/etc/virtual/domainips" ]; then
    mv /etc/virtual/domainips /etc/virtual/domainips.bak`date +%Y%m%d`
fi;


touch /etc/virtual/domainips;


servername=`grep ^servername= /usr/local/directadmin/conf/directadmin.conf | cut -d\= -f2`


for domain in `cat /etc/virtual/domains | grep -v ^$servername$ | sort | uniq`;
do
    ip='';
    owner=`grep ^$domain: /etc/virtual/domainowners | cut -d\  -f2`


    if [ -f "/usr/local/directadmin/data/users/$owner/domains/$domain.conf" ]; then
        # REGULAR DOMAIN
        get_ip;
        echo "[D] Found domain $domain owned by $owner. IP=$ip";
        [ -z "$ip" ] || echo "$domain:$ip" >> /etc/virtual/domainips;
    else
        # POINTER
        pointer=$domain;
        if [ -d "/etc/virtual/$domain" ]; then
            domain=`ls -ld /etc/virtual/$domain | awk '{print $11}'`
        fi;
        get_ip;
        echo "[P] Found domain pointer $pointer to $domain owned by $owner. IP=$ip";
        [ -z "$ip" ] || echo "$pointer:$ip" >> /etc/virtual/domainips;
    fi;


done;


chmod 440 /etc/virtual/domainips;
chown mail:mail /etc/virtual/domainips;


exit;

A script for creating /etc/virtual/smtp_active_hostnames

The file /etc/virtual/helo_data is a link to /etc/virtual/smtp_active_hostnames

#!/bin/bash
#
# by Alex S Grebenschikov (support@poralix.com)
# v.0.1 2014-03-22
# Only IPv4 supported
#


save_to_file="/etc/virtual/smtp_active_hostnames";
servername=`grep ^servername= /usr/local/directadmin/conf/directadmin.conf | cut -d\= -f2`;

if [ -f "${save_to_file}" ]; then
    echo "Creating a backup copy of the file ${save_to_file}";
    mv ${save_to_file} ${save_to_file}.bak`date +%Y%m%d`;
fi;

touch ${save_to_file};

for IP in `cat /usr/local/directadmin/data/admin/ip.list | grep -v ^127.0.0.1$ | grep "\." | sort`;
do
{
    status='';
    owner='';
    hostname='';
    echo -n "[IP] Found ${IP}";
    if [ -f "/usr/local/directadmin/data/admin/ips/${IP}" ]; then
    {
        status=`grep ^status= /usr/local/directadmin/data/admin/ips/${IP} | cut -d\= -f2`;
        [ "${status}" != "owned" ] || owner=`grep ^value= /usr/local/directadmin/data/admin/ips/${IP} | cut -d\= -f2`;

        echo -n " with status=${status} ${owner}";
        hostname=${servername};

        if [ "${status}" == "owned" ]; then
        {
            homedir=`grep "^${owner}:" /etc/passwd | cut -d\: -f6`;
            if [ -d "${homedir}/public_html" ]; then
            {
                hostname="mail.`ls -dl ${homedir}/public_html | awk '{print $11}' | cut -d\/ -f3`";
            }
            fi;
        }
        fi;
        echo " hostname set to ${hostname}";

        echo "${IP}: ${hostname}" >> ${save_to_file};
    }
    fi;
}
done;

exit 0;

Posted here on Directadmin forums