[soup4you2]

Here's the MySQL Tables for postfix if anybody is interested in using mysql instead of Maildir's
Database
USE mysql;
INSERT INTO user (Host, User, Password) VALUES ('localhost','postfix',password('postfix'));
INSERT INTO db (Host, Db, User, Select_priv) VALUES ('localhost','postfix','postfix','Y');
CREATE DATABASE postfix;

Alias Table

USE postfix;
CREATE TABLE alias (
address varchar(255) NOT NULL default '',
goto text NOT NULL,
domain varchar(255) NOT NULL default '',
create_date datetime NOT NULL default '0000-00-00 00:00:00',
change_date datetime NOT NULL default '0000-00-00 00:00:00',
active tinyint(4) NOT NULL default '1',
PRIMARY KEY (address)
) TYPE=MyISAM COMMENT='Virtual Aliases - mysql_virtual_alias_maps';


Domain Table

USE postfix;
CREATE TABLE domain (
domain varchar(255) NOT NULL default '',
description varchar(255) NOT NULL default '',
create_date datetime NOT NULL default '0000-00-00 00:00:00',
change_date datetime NOT NULL default '0000-00-00 00:00:00',
active tinyint(4) NOT NULL default '1',
PRIMARY KEY (domain)
) TYPE=MyISAM COMMENT='Virtual Domains - mysql_virtual_domains_maps';

Mailbox table

USE postfix;
CREATE TABLE mailbox (
username varchar(255) NOT NULL default '',
password varchar(255) NOT NULL default '',
name varchar(255) NOT NULL default '',
maildir varchar(255) NOT NULL default '',
domain varchar(255) NOT NULL default '',
create_date datetime NOT NULL default '0000-00-00 00:00:00',
change_date datetime NOT NULL default '0000-00-00 00:00:00',
active tinyint(4) NOT NULL default '1',
PRIMARY KEY (username)
) TYPE=MyISAM COMMENT='Virtual Mailboxes - mysql_virtual_mailbox_maps';

Enjoy...