Zentyal announces Zentyal Server 4.0, major new Linux Small Business Server release

(Full press release available in English , Spanish)

Zentyal, developer of server technology natively interoperable with Microsoft® server products, today announced a new release of the Zentyal Linux small business server. Zentyal Server 4.0 aims at offering small and medium businesses (SMBs) a Linux based Small Business Server that can be set up in less than 30 minutes and is both easy-to-use and affordable.

The Zentyal 4.0 release focuses on providing an improved and stable server edition with native Microsoft® Exchange protocol implementation and Active Directory interoperability, with the goal of providing a complete and easy-to-use Small Business Server, with native support for mixed IT environments that include Windows®, Linux and Mac OS® clients, as well as mobile devices with ActiveSync®. Thanks to this, Zentyal server 4.0 offers full native Microsoft® Outlook Compatibility without plugins or connectors.

Besides focusing primarily on mail and mail-related directory features, additional improvements have also taken place. The L2TP module has been restructured and improved and free configuration backup in the cloud has been made available directly through the Zentyal Server UI. Moreover, an important effort has been put into establishing the necessary quality assurance processes, to improve the stability of the Zentyal Server releases.

Zentyal Server 4.0: Technical features (community edition)

Zentyal Server 4.0 comes with improved mail and mail-related directory features. It is based on the latest Ubuntu LTS distribution (Ubuntu 14.04). New features and improvements include:

  • Improved provisioning of Zentyal as first Microsoft® Exchange Server
  • Improved PST import
  • Improved support for RPC over HTTP (Microsoft Outlook® Anywhere)
  • Improved Autodiscover service
  • Improved support for multiple virtual mail domains
  • Improved support for Microsoft Outlook® 2007, 2010
  • Improved support for shared calendars & contacts
  • Improved multi-language support for mailboxes
  • Improved Out of office-message support
  • Initial support for Microsoft Outlook® 2013
  • Improved QA processes, tools and incident follow up method
  • Smooth migration path from Zentyal Server 3.5 to 4.0
  • Restructuring and improvement of the L2TP module
  • Free Configuration Backup in the cloud directly from the Zentyal Server UI

Full list of Zentyal 4.0 features can be found on the www.zentyal.org website at:

In addition, a number of modules have been removed in order to focus on Zentyal Server’s goal: Offer a complete and easy-to-use Small Business Server, with native support for mixed IT environments. The dropped modules are: IPS, UPS management, Backup, Monitor, RADIUS, Webserver, Roudcube Webmail (replaced by SOGo Webmail) and IPsec (replaced by a new module supporting only L2TP). Also the Free Zentyal Account has been discontinued. Documentation on configuring most of these services with specific software has been provided on the Zentyal Wiki page.


Automatic migration path from the latest community version (Zentyal Server 3.5) to Zentyal Server 4.0 will be provided shortly. The migration process will be made available in a few weeks in order to consolidate the scenario.


Zentyal Server 4.0 is released under the GPLv2 license and is freely available for download at:

The Zentyal Server source code is available at:

Free 30-day Trial of the commercial edition of Zentyal Server 4.0 is available upon request at:

Additional information

Full list of Zentyal 4.0 features is available at:

The detailed Zentyal 4.0 release announcement is available at:

The full change log from Zentyal 3.5 to 4.0 is available at:

The complete official Zentyal 4.0 documentation will be shortly available in English and Spanish at:

Documentation on configuring dropped services is available at:

About Zentyal

Zentyal is the only vendor worldwide to offer server technology that is natively interoperable with both Microsoft Active Directory® and Microsoft® Exchange Server protocols. More information at www.zentyal.com and www.zentyal.org


  1. Paul

    Fantastic work, really looking forward to downloading and testing. I’ve been a massive fan since the Ebox days!

    Just some quick ideas to add to this awsome project (you may have already thought of some of these)
    1. A storage manager to configure RAID options, shares, etc (like a NAS) and fully integrated with the directory server
    2. A virtual machine manager, something like KVM integrated with your web-gui.
    3. A system management server, like Mandriva Pulse 2.


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    1. Lenny Horstink

      This release will only be in 64-bit.

      Edit: the Zentyal Server installer is 64-bit. If you have installed the 32-bit Ubuntu server yourself you can follow these instructions to install Zentyal Server 4.0 from the APT repository.

  3. Hans

    Thank you for the reply, I’ll do that.
    There is still a lot of powerful 32-bit hardware out there and no reason, why this hardware should end at a waste dump (in Africa).

  4. Matt S.

    It seems there is a mistake on your features page under the part that says:

    Synchronization with mobile devices
    Native connectivity with Android™, iOS (ActiveSync® support)
    Software integrated: Z-Push®, SOGo

    This software isn’t integrated and requires installation through apt. Also, it barely works.

    I know it is free but you shouldn’t release software or features that aren’t ready yet.

    1. Lenny Horstink

      Hi Matt. Thanks for your feedback. This software is integrated in the Zentyal Small Business server, because once installed through apt it appears in the dashboard. We would have liked to make the installment easier, but it has to be done through apt because of legal reasons. If you find a bug, we would be very grateful if you can report it in our bug tracker, so that we can fix it. Thanks!

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