PostfixAdmin is a Web Based Management tool created for Postfix. It is a PHP based application that handles Postfix Style Virtual Domains and Users that are stored in MySQL, PostgreSQL or SQLite
Netmanage is a shell script based network management tool for redhat linux . With this tool you can manage dns server , webhosting server , mail server , proxy server , basic iptables . This is a menu driven shell program and easy to use .