Set up email server on Linux server. Install and configure Postfix, Roundcube, MySQL, Spam Assasssin etc.
This will eventually be expanded to provide user-friendly front end etc., so will need someone in Melbourne, Australia so that we can meet up and discuss details face-to-face.
Budget quoted below is just for initial installation and configuring of Postfix, RoundCube, MySQL, Spam Assassin, etc. Once this is bedded down and made secure, will discuss further enhancements and budget for next phase etc.