The default webmail client is Roundcube. Roundcube 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 available at the following URLs:

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


Roundcube supports many plugins already bundled within the installation.

Plugins enabled by default:

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

Other 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 file:/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