Table of Contents

Release Date: 6 December 2016


Thank you for downloading Scalix 12.6

Scalix 12.6 is the latest upgrade of Scalix 12, providing important fixes and exciting new features. We recommend that you upgrade all systems running Scalix to this latest version.

This document includes late-breaking information about product capabilities, fixed bugs, known issues and workarounds, so please read it thoroughly before beginning your installation or upgrade.

To Download Scalix 12.6 please visit,

For full documentation on how to install, configure and administer Scalix, see the customer documentation at documentation. In addition, after Installing the Scalix Mail Server and other applications, you can access the following online help systems, which are embedded in the product:

  • Scalix Web Access Online Help
  • Scalix Management Console Online Help
  • Scalix Connect for Microsoft Outlook Online Help

You can also learn more about any of the known issues or report others by going to the Scalix bug tracking system at

Scalix, Inc. is committed to your success with our software. For additional information beyond what is provided here and in the official product documentation, visit the Scalix Forums at Forums.

Customers who have purchased support from Scalix also may also contact Scalix Technical Support to request help, ask questions about how to use a particular feature, provide feedback, or report bugs by visiting Support.



Starting with version 11.3 Scalix Connect for Outlook includes software developed by the OpenSSL project for use in the OpenSSL toolkit. ( It also includes cryptographic software written by Eric Young (This email address is being protected from spambots. You need JavaScript enabled to view it.) and software written by Tim Hudson (This email address is being protected from spambots. You need JavaScript enabled to view it.). Scalix would like to thank these individuals and the OpenSSL community for their valuable contributions.

Starting with version 11.3 Scalix Server includes software based on the Universal Character Set Detector from the Mozilla project (, written by Simon Montagu (This email address is being protected from spambots. You need JavaScript enabled to view it.), Shy Shalom (This email address is being protected from spambots. You need JavaScript enabled to view it.), Shoshannah Forbes and others. Scalix would like to thank these individuals and the Mozilla community for their valuable contributions.


  • The test appliance should not be used in production for this reasons (would need to reconfigure Scalix with different domain/password) before you can start the download.
  • Scalix Connector needs to be installed with proper Admin-rights on your Computer
  • System needs to be backed up before upgrade.


Java Environment

Be aware that some middleware components of Scalix require JRE. We support JRE >=1.6 and <=1.8, vendors: Oracle, IBM, opensource (openjdk in particular)

Please note that :

  • We do not recommend using openjdk on production systems because it can cause slowdowns, higher CPU/Memory usage and can cause instability and unexpected errors. While you can install Scalix 12.6 with the openjdk we suggest that you use the openjdk with systems that are non-production, testing system or low load servers.
  • For IBM platforms you would need to install the IBM JRE package manually.

Scalix Binaries

All the Scalix server binaries are compiled as 32-bit only for the moment.

Scalix can be installed on 64-bit Intel or IBM computers, and in 64-bit Linux environments as a 32-bit application. You will need to make sure, proper 32 bit compatible libraries are installed.

Installation issues

  • The following procedure/adjustments are mandatory if you installed CentOS6 (64bit) or ORACLE Linux 6 (x86/x64)
    • If port 80 is not set to allow connections (open) in ip tables, Tomcat will not work at all - scalix-tomcat service will run, but in the tomcat log there will be a big backtrace
      • Open port 80 in iptables
      • restart the iptables service
      • restart the scalix-tomcat service
      • restart the httpd service
    • After this it should be working correctly
    • Secondly initialization of all web applications in Tomcat can take over 20 sec - Tomcat will work only after initialization of its webapps. If you make changes to Tomcat such as the above, please also restart apache (service httpd restart).
  • On Debian sometime installation fails due to a pre-existing error in the file with the MAILER lines in the wrong place. To fix this manually move the bad MAILER lines to the end of the file and try again.
  • On IBM hardware platforms the installer does not install the jre package automatically. You would need to install JRE package manually.
  • To improve SWA performance you must follow description from official Apache website and make changes accordingly depending on your environment and jre that you are using.
  • While installing on a non ext4 filesystem, you might be presented with error “Error in `omnewul': double free or corruption (top): 0xxxxxxx” To avoid this, it is recommended to use ext4 filesystem


Important end of Life Notices

         Upgrading from Scalix 11.3 or earlier is not supported


Upgrade Notices

Please read the following notes very carefully, as some specific actions might be required as you upgrade from earlier versions of Scalix.

When running Scalix in a mixed-version multi-server setup, where your front end servers are running Scalix Web Access 12.6, the back end servers have to be upgraded to at minimum version 12.6 as well.

Upgrading from a previous version

If you are upgrading from a previous version of Scalix, there are several changes of which you should be aware:

  • Before beginning any upgrades, check your license key. If you are upgrading to or from a Small Business Edition (SBE), Enterprise Edition (EE) or Hosting Edition (HE) installation, you need to have a valid and current license key with a "Last Valid Issue Date" (LVID) on or after July 1, 2016 (2016-07-01) to use Scalix 12.6. If you continue installation after the respective warning and the license is not valid, your installation will downgrade to the Community Edition. To check the LVID of your license, use the Scalix Management Console or the sxlicense command. To extend your upgrade subscription or to get a new license key, please contact Scalix Sales.
  • When upgrading from previous installation of Scalix to 12.6, it is recommended that you empty your IMAP caches by running the following command on your backend server. Please note that this command may only be run when nobody is signed on to the system (when the rci and IMAP services are off): cd $(omrealpath "~/"); find user* -name imap-cache -exec rm -rf {} \;
  • While moving Scalix to a newer OS version, please follow



Features & Supported OS

Scalix 12.6 provides the following features:

Scalix Web Access (SWA) Unleashed:

  • Internet Explorer Support - SWA in Scalix 12.6 has been enhanced to work with IE 11.
  • Edge Support- SWA in Scalix 12.6 has been enhanced to suppor Microsoft Edge.
  • Firefox Support - SWA in Scalix 12.6 has been enhanced to work with Mozilla's latest browsers. Firefox 46 support has been added.
  • Chrome - SWA in Scalix 12.6 has been enhanced to support Chrome.
  • Safari - Scalix 12.6 SWA now supports Safari.
  • Overlay Calendars - Allows the user to see multiple calendars at the same time in day, week and month views. This makes it much easier to organize events and appointments in multiple personal calendars. It also allows the user to combine personal, public and other people's calendars in a single view for easier planning and scheduling.
  • Calendar Planning Method - Allows the user to see multiple calendars in a planning sheet view at the same time at various scales, e.g. day, week, and month. This allows for easy planning in teams, managing holiday calendars or doing team resource allocation.
  • Conversation view – Scalix 12.6 webmail now supports arranging emails in conversation view.
  • Performance - Better usability through improved load times and multiple performance optimizations.
  • Faster Search –With Upgraded Lucene version, SIS now provides faster search operations, which renders SWA to display search results faster.
  • Localization Kits- With Scalix 12.6 release, SWA comes with Brazilian, Italian, Russian translations out of box. The localization kit further allows customers and Scalix partners to provide support for other languages, customized look and feel through themes and package these up to be shared and deployed in a clean and modular way.

Scalix Connector for Outlook

  • Outlook 2007/2010/2013/2016 (32bit) Support on Windows 7/8/10 (32bit and 64bit)..
  • Outlook 2007/2010/2013/2016 Support on Windows Terminal server 2008 and 2012 R1/R2 (32bit and 64bit).
  • 64 bit Outlook connector support with Outlook 2007/2010/2013/2016 (32bit) on Windows 7/8 (64bit) .
  • Updated SmartCache

Scalix AntiSpam and ZeroHour AntiVirus

These add-on product modules for Scalix Enterprise Edition and Scalix Small Business Edition provide for world-class Junkmail and Malware protection powered by Cyrens’s patented RPD technology.

  • Easy to Setup - Software to use the subscription-based service is included in every version of Scalix and can be enabled with a license key
  • Easy to Administer - The technology uses the Cyren’s Detection Center online. Up to 97% of all incoming spam is detected and blocked without any filter training or configuration.
  • Flexible Deployment - The Spam filter can be implemented right on the Scalix server and - in Scalix Enterprise Edition - on a dedicated gateway machine.
  • Uses Cyren anti-spam engine 8.0 (optional license).

Scalix ActiveSync

Connect ActiveSync enabled wireless devices directly to the Scalix server without additional software needed on the device and use them for push Email and wireless calendar and contact synchronization.

  • Wireless Clients of Choice - ActiveSync support is available on almost any Windows Mobile, Android as well as Apple iOS and compatible devices
  • Flexible Deployment - The wireless service can be implemented right on the Scalix server or on a separate server with or without rest web applications provided by Scalix Inc.
  • Based on Microsoft Technology - The Scalix ActiveSync wireless solution is based on technology licensed from Microsoft, ensuring best compatibility and investment protection for future versions.

Scalix Proxy Folders for Feeds.

Scalix Proxy Folders offer functionality where it is possible to setup server-side subscriptions to in-house and external data feeds.

  • WebCal and RSS/Atom - Subscribe to newsfeeds and publicly available calendar data such as national holidays, industry events listings or sports schedules.
  • Public or Private folders - Feeds can be mapped to a personal folder in a user's mailbox, then taken offline or re-shared with other users. They can also be applied to a public folder for company wide available information.
  • Available in all Clients - While feeds currently need to be setup by an administrator, they can be seen in all clients once established. The server will manage the feed, providing user access through Outlook, SWA, IMAP, CalDAV and more.

Major hosting enhancements:

  • Add server support for per-mailnode configuration (see omaddmn/ommodmn/omshomn man pages).
  • Add server support for per-mailnode user quota/sanction in omlimit (see omlimit man page).
  • Add server support for hosting tenants spanning multiple server (see sxhostadd/sxhostdel man pages).
  • Enhance sxhostcfg and sxdu to support new functionalities (see sxhostcfg and sxdu man pages).

Hardware Support extended for IBM Power and Mainframe

The core server software for Scalix 12 .6 release has been updated to install and run on the latest popular OS platforms, in particular the hardware support has been extended to include IBM PowerPC and Z-series (see detailed list).

Improved Performance and Scalability.

The performance and scalability has been improved in Scalix 12.6 with enhancements to support faster 'bulk' operations for user add/delete/modify (see man pages). A number of bugs and features have also been addressed to improve the customer experience.

Supported Platforms

We are glad to announce – scalix 12.6 is the first official and fully supported version for IBM Power & IBM Mainframe!

Distribution Version Architecture Status Notes
Red Hat Enterprise Server >=6.8 i386/x86_64 Fully Supported
Red Hat Enterprise Server >=6.6 s390x/ppc64 Fully Supported Cyren is not supported
Red Hat Enterprise Server >=7.2 x86_64 Fully Supported>
CentOS,Oracle Linux >=6.8 i386/x86_64 Fully Supported
CentOS,Oracle Linux >=7.2 x86_64 Fully Supported
SUSE Linux Enterprise Server 11sp4 i386/x86_64 Fully Supported Please update your repositories, because some libraries were included by vendor in July 2016
SUSE Linux Enterprise Server 11sp4 s390x/ppc64 Fully Supported Cyren is not supported. Please update your repositories, because some libraries were included by vendor in July 2016
SUSE Linux Enterprise Server 12sp1 x86_64 Fully Supported
OpenSUSE 13.2 i386/x86_64 Experimental Support Not recommended for production use
Debian >=7.8 i386/x86_64 Experimental Support Installer can be found at .
Debian 8 is not supported.
Ubuntu 14.04 i386/x86_64 Experimental Support Installer can be found at


Support for Centos7 on IBM platform is presently not available for following reasons :

o   They are way behind RHEL7 schedule

o   They support Little Endian (LE) only .

o   They have dropped some 32bit packages .

Hardware Support extended for IBM Power and Mainframe

Please refer the Scalix Installation guide for current minimum system requirements.


Note that the choice of storage environments will have a major influence on performance of your Scalix system. Scalix as an application is largely I/O-bound, using variable, small-blocksize random read/write synchronous file I/O.

Also note that Scalix does not support putting a Scalix Message Store on a NFS- or SMB-based storage device such as a NAS Filer. Performance issues and/or Message Store corruption can occur. This is true for all Linux distributions using Linux 2.6.x kernels as the NFS client software in these kernels have known issues with file locking operations, which Scalix heavily relies on.

We suggest putting the Scalix message store on a Hardware RAID Array, using RAID 1+0 for best performance. The use of RAID 5 or RAID 6 will result in substantially worse performance due to the nature of Scalix Disk I/O patterns (small, synchronous random writes) and is not recommended. In larger installations, we do recommend using iSCSI- or FibreChannel-based SAN storage. We also recommend the use of battery-backed write cache on the RAID controller where available



The Scalix 12.6 Release consists of a self-extracting shell archives for Linux and a separate ZIP file download for the Windows components.

The Components in the package and their respective version numbers are as follows:




Scalix Installer

Linux .bin


Scalix Server

Linux .bin

Scalix Character Set Detectors

Linux .bin


Scalix Libical

Linux .bin


Scalix iconv Extras

Linux .bin


Scalix Management Services (SAC, RES)

Linux .bin

Scalix Messaging Services ("Platform")

Linux .bin

Scalix Web Access (SWA)

Linux .bin

Scalix Search and Indexing Services (SIS)

Linux .bin


Scalix Text Extractors for Indexing and Search *

Linux .bin


Scalix DB (Postgres)

Linux .bin


Scalix Tomcat Connector

Linux .bin


Scalix Tomcat

Linux .bin


Scalix Connect for Evolution

Linux .bin

Scalix Connect for Outlook**

Windows .zip


Scalix Migration Tool (SMT) ***

Windows .zip

Scalix Active Directory Extensions (ADE) ****

Windows .zip


* Text extractors allow the indexing of binary Microsoft Office (Word, Excel and PowerPoint) and PDF documents. They are only available as part of Scalix Small Business Edition (SBE) or Enterprise Edition (EE)
** For Scalix Community Edition downloads, Scalix Connect for Outlook (MAPI) is a separate ZIP-file download.
*** The Scalix Migration Tool is a separately-sold product to migrate eMail, Calendar, Contacts and other objects from Exchange 5.5, 2000, 2003 to Scalix. Please contact
Scalix Sales for details.
**** The Scalix Active Directory Extensions are only available as part of Scalix Small Business Edition (SBE) or Enterprise Edition (EE)

Scalix Appliance

Scalix 12.6 Appliance is now available as OVA,OVF and VHD files.

You can download the Scalix Appliance from,

To use Scalix Appliance with RHEL 6.8 on VMware Workstation 12 pro, please follow the steps given at,

To use Scalix Appliance with CentOS 7 on VMware Workstation 12 pro, please follow the steps given at,

To install Scalix Appliance on other virtualization environment please refer the Scalix 12.6 installation guide available at,

Please note that the appliance comes with a Scalix community edition License . For a full feature test of Scalix 12.6 (Enterprise Edition/Small Business Edition), please add a (trial)License Key.
Also note that the RHEL Appliance does not come with a Red Hat License. It is recommended to add the Red Hat License key for a full featured user experience.


Scalix 12.6 addresses a number of issues with the previous versions and comes with more than 100’s of bug fixes and various major changes and enhancements added.

For the complete list of Fixes/Changes of Scalix 12.6, please check the Scalix 12.6 changelog file at, Scalix-Changelog-12.6.