<VirtualHost *:80>
        ServerName example.com
        ServerAdmin admin@example.com
        DocumentRoot /var/www/html/roundcube

        ErrorLog ${APACHE_LOG_DIR}/roundcube_error.log
        CustomLog ${APACHE_LOG_DIR}/roundcube_access.log combined

        <Directory /var/www/html/roundcube>
                Options -Indexes
                AllowOverride All
                Order allow,deny
                allow from all
        </Directory>
</VirtualHost>