The Zentyal development team has announced the launch of Zentyal 4.1. The Ubuntu-based server distribution is designed to be easy to install and configure and ships with a powerful collection of web-based system administration modules. "Zentyal development team is proud to announce Zentyal Server 4.1, a new release of the Zentyal open-source Linux small business server with native Microsoft Exchange protocol implementation and Active Directory interoperability. This release is completely focused on improving the stability and set of features delivered by the OpenChange module, based on Ubuntu 14.04.2 LTS to provide the latest stable packages. Zentyal server comes in two different flavors: development version, for bleeding-edge testing of the latest available features and commercial version for stable production environments. Features: support for Microsoft Outlook 2007, 2010, 2013; multiple virtual mail domains; synchronization with mobile devices (ActiveSync support); central domain directory management...."