PostfixAdmin
Virtual mail hosting interface for Postfix
Postfixadmin is a web interface to manage virtual users and domains for a Postfix mail transport agent. It supports Virtual mailboxes, aliases, forwarders and vacation.
Postfixadmin allows administrators to delegate account handling to domain administrators and allows users to login and change their own settings (e.g. forwarders, vacation, passwords etc).
It provides easy integration into dovecot, courier or cyrus.
Postfixadmin is written in PHP.