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Roundcube is a full-featured, PHP web-based mail client.


Install roundcubemail from the official repositories. Further you will need a database (e.g. MariaDB) and a web server with PHP-support (this guide will assume the Apache HTTP Server).

Since 1.1.0 roundcube needs iconv and/or mbstring PHP extensions.



Here's an example on how you could setup a database for Roundcube with MariaDB called roundcubemail for the user roundcube identified by the password password:

CREATE DATABASE roundcubemail;
GRANT ALL PRIVILEGES ON roundcubemail.* TO 'roundcube'@'localhost' IDENTIFIED BY 'password';

For any database you use, you will need to initialize the roundcubemail database tables. Here is an example of how to do this with MariaDB:

 mysql -u root -p roundcubemail < /usr/share/webapps/roundcubemail/SQL/mysql.initial.sql


Copy the example configuration file and adjust it to your configuration:

cp /etc/webapps/roundcubemail/config/ /etc/webapps/roundcubemail/config/

Set your mail server settings, and set enable_installer to enable the setup wizard:

$config['db_dsnw'] = 'mysql://roundcube:****@localhost/roundcubemail';
$config['default_host'] = 'tls://localhost';
$config['smtp_server'] = 'localhost';
$config['enable_installer'] = true;


Make sure to adjust following variables to these minimal values in your PHP config:

 date.timezone = "UTC"

Webserver (Apache)

Copy the configuration file for Apache to its configuration directory:

cp /etc/webapps/roundcubemail/apache.conf /etc/httpd/conf/extra/roundcube.conf

And include it at the bottom of

 Include conf/extra/roundcube.conf

Restart Apache (httpd.service).

Install Roundcube

Finally you can visit the Roundcube installation wizard in your browser: http://localhost/roundcube/installer

For security reasons, you should disable the installer when you have completed the wizard: remove $config['enable_installer'] = true; from

Because the ~/roundcube/config directory contains sensitive information about your server, it's also a good idea to disallow access to this directory by adding these lines, too.

  <Directory /usr/share/webapps/roundcubemail/config>
     Options -FollowSymLinks
     AllowOverride None
     Require all denied

Tips and tricks

Setting Roundcube up for use with an IMAP server that only allows TLS authentication

It's quite common for modern IMAP servers to only allow encrypted authentication, say using STARTTLS. If you are setting Roundcube up for TLS authentication, the web-based installer won't help you. You will need to edit the /etc/webapps/roundcubemail/config/ by hand, adding the following lines:

 $config['default_host'] = 'tls://';
 $config['imap_conn_options'] = array(
     'ssl' => array(
       'verify_peer'       => true,
       'allow_self_signed' => true,
       'peer_name'         => '',
       'ciphers' => 'TLSv1+HIGH:!aNull:@STRENGTH',
       'cafile'  => '/etc/ssl/certs/',

where is the CN host name in your SSL certificate (i.e. the hostname of your IMAP server), and /etc/ssl/certs/ is the path to your SSL certificate. You might need to adjust the ciphers element to correspond to the ciphers allowed by your IMAP server.

A complete list of PHP SSL configuration options can be found here.

PDF and OpenDocument file preview

Following Roundcube extensions enables you to preview PDF or OpenDocument file attachements. Install roundcubemail-plugins-kolabAUR from the AUR and adjust following configuration file to enable the extensions:

$config['plugins'] = array(

If you encounter any file permission issues, than try this command:

chown -R http:http /usr/share/webapps/roundcubemail/plugins/odfviewer/files

Synchronize address book with CardDav contacts

It's useful to use the Roundcube address book to have auto-completion features for address fields etc. If you have your contacts stored somewhere else and the remote application offers a CardDav server for synchronization, then you can use the roundcube-rcmcarddavAUR extension from the AUR to access your remote address book in Roundcube. To enable it, adjust following lines in your config file:

$config['plugins'] = array(

Further usage instructions can be found here.

See also