iRedMail is a full-featured mail server ready in 2 Minutes, its a shell script that lets you quickly deploy a full-featured mail solution in less than 2 minutes. Since version 0.5, iRedMail supports Ubuntu 8.04, 9.04 (it supports both i386 and x86_64). Its object is to make a Linux mail server installation and configuration simple and easy to use. iRedMail supports both OpenLDAP and MySQL as backends for storing virtual domains and users.This tutorial shows how to use the OpenLDAP backend.
Now iRedmail provides two webmail programs, RoundCube and SquirrelMail, and both support MySQL and OpenLDAP and can change the password.