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.


You can find a more recent version of roundcubemail in NethForge, you must remove first roundcubemail and install nethserver-roundcubemail-next from NethForge.

The event to use in the command line becomes nethserver-roundcubemail-next-update


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


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

ls /usr/share/roundcubemail/skins

The default skin is larry. If you want to set the elastic skin as the default skin:

config setprop roundcubemail skin elastic
signal-event nethserver-roundcubemail-update

Please note that each user can override the default skin in the settings > preferences > User Interface of roundcubemail


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

If you want remove nethserver-roundcubemail-next, run the following command on the server command line.

yum autoremove nethserver-roundcubemail-next