This article is outdated. Updated version on building a mail server on Debian 6 is published as a free eBook here.

We will install roundcube to the /var/www folder. This way, when somebody enters mail.somedomain-we-host.com they will see Roundcube.

Download Roundcube, uncompress the archive, and copy all the files to the /var/www folder.

Make folder temp and logs writable by the web server.

chown www-data:www-data /var/www/temp
chown www-data:www-data /var/www/logs

Enter MySQL with

mysql -u root -p

create database and user for Roundcube (chen newpassword to something else).

CREATE DATABASE ROUNDCUBE;
CREATE USER 'rounducbe'@'localhost' IDENTIFIED BY 'newpasswd';
FLUSH PRIVILEGES;
GRANT ALL PRIVILEGES ON roundcube.* TO 'roundcube'@'localhost';
FLUSH PRIVILEGES;

Exit MySQL and populate the database with initial tables

 mysql -p roundcube < /var/www/SQL/mysql.initial.sql

Point your browser to httpYOUR-IP-ADDRESS/installer When prompted for configuration options enter select many identities with possibility to edit all params but not email address and select Use the current IMAP username and password for SMTP authentication. Fill in the database info. Other options you can figure out for yourself.