Roundcube is only a web interface to a mail server, and not an actual mail server. Your Mail Server needs to be setup in order to handle multiple domains, then roundcube can support accessing those multiple domains on your server.
If you are linux savvy, take a look at http://www.qmailrocks.org for a guide on installing a linux mail server that supports multiple domains.
Steven Parker
From: Roosevelth Campos [mailto:gutenbergc@gmail.com] Sent: Wednesday, May 10, 2006 9:34 AM To: users@lists.roundcube.net Subject: how to install round robin with multiples domains
It would like to know as I make the installation of software with domains multiples