EVOLUTION-MANAGER

Edit File: BACKUP_MX.txt

# # Postfix Admin # by Mischa Peters <mischa at high5 dot net> # Copyright (c) 2002 - 2005 High5! # Licensed under GPL for more info check GPL-LICENSE.TXT # Please follow these steps if your mailserver is used as a backup MX for some (or all) of your domains. Note: The setup described in this file only checks the domain, not the full mail address. You should use "reject_unverified_recipient" in your postfix config or setup "relay_recipient_maps" with a list of valid mail adresses on the primary mx to avoid that your backup MX accepts mails for non-existing recipient adresses. Without this, your backup MX might become a backscatter source. 1. Modify main.cf ----------------- In order for Postfix to use MySQL for relay_domains add the following to your main.cf relay_domains = proxy:mysql:/usr/local/etc/postfix/mysql_relay_domains_maps.cf 2. mysql_relay_domains_maps.cf ------------------------------ You will need to put this into a text file for postfix to pickup. user = postfix password = password hosts = localhost dbname = postfix query = SELECT domain FROM domain WHERE domain = '%s' AND backupmx = '1' 3. Restart Postfix ------------------- When you are done make sure to restart Postfix so the changes take effect.