The default webmail client is Roundcube. Roundcube’s main features are:

  • Simple and fast
  • Built-in address book integrated with internal LDAP
  • Support for HTML messages
  • Shared folders support
  • Plugins

The webmail is accessible directly from Applicatons page, just click on the Open button. It is available at the following URLs:

For example, given a server with IP address and name mail.mydomain.com, valid addresses are:


If NethServer is bound to a remote Active Directory account provider a dedicated user account in AD is required by the module to be fully operational! See Join an existing Active Directory domain.


Roundcube supports many plugins that are already bundled within the installation.

The plugins that are enabled by default are:

  • Manage sieve: manage filters for incoming mail
  • Mark as junk: mark the selected messages as Junk and move them to the configured Junk folder

Recommended plugins:

  • New mail notifier
  • Emoticons
  • VCard support

Plugins can be added or removed by editing the comma-separated list inside the Plugins property. For example, to enable “mail notification”, “mark as junk” and “manage sieve plugins”, execute from command line:

config setprop roundcubemail PluginsList managesieve,markasjunk,newmail_notifier
signal-event nethserver-roundcubemail-update

A list of bundled plugins can be found inside /usr/share/roundcubemail/plugins directory. To get the list, just execute:

ls /usr/share/roundcubemail/plugins


With default configuration webmail is accessible using HTTPS from any network.

If you want to restrict the access only from green and trusted networks, execute:

config setprop roundcubemail access private
signal-event nethserver-roundcubemail-update

If you want to open the access from any network:

config setprop roundcubemail access public
signal-event nethserver-roundcubemail-update


If you want remove Roundcube, run the following command on the server command line.

yum autoremove nethserver-roundcubemail