howtoForge has published version 1.0 of the document
Virtual Users And Domains With Postfix, Courier And MySQL
"This document describes how to install a mail server based on Postfix that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses.
to post comments)