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Open-Xchange Server
Open-Xchange portal interface
Developer	Open-Xchange Inc.
OS	Linux
Genre	Groupware
License	Dual license
Website	www.open-xchange.com

Open-Xchange Server is a messaging and collaboration solution combining common free software packages, open standards and web services. Open-Xchange Server is available as proprietary software and as a community supported open-source software (GPL 2) package. The company producing Open-Xchange, also named Open-Xchange, is headquartered in Tarrytown, NY, USA, with offices in Germany (Olpe/Nürnberg).

OX Server 5 User Interface

Hosting Edition Webmail

Open-Xchange Express Edition is a web-based email and collaboration solution. Designed for smaller organizations, the Express Edition includes: Ubuntu operating system, open source middleware, collaboration, email, and document sharing software, anti-virus, anti-spam, automatic updates and backup/recovery. The browser-based AJAX interface enables drag and drop, right-click menus, shared calendars, contacts, tasks and documents. Open-Xchange Express Edition supports standard 'rich' clients, such as Microsoft Outlook. Furthermore, Open-Xchange Express Edition provides a WebDAV interface that allows to integrate the document management system called InfoStore into desktop environments or to get read access in web browsers. Outlook users on OX Express Edition can synchronize public, private, and shared folders, accept or decline appointments through Outlook, manage private appointments, tasks, contacts, and “Free/Busy” status.

Open-Xchange Server 5 delivers Critical Collaborative functions such as Email, Calendar, Contacts, and Task management - integrated with advanced groupware features such as Document Sharing, Object Linking, Rights Management, Online Projects, User Forums, and a Knowledge Base. The Open-Xchange integration philosophy is based on common standards, working with existing IT infrastructure on standard interfaces such as WebDAV and XML (commercial version) interfaces and Java API. Server 5 supports:

• SyncML enabled devices.
• Third party software provides access from Treo devices
• Any modern web browser
• Microsoft Outlook and Microsoft Outlook Express via the Outlook OXtender, a plugin that allows the Outlook client to interact with an Open-Xchange Server as though it were a Microsoft Exchange Server
• WebDAV interface (XML), LDAP, iCal, HTTP(S), SMTP, IMAP, POP3, and SyncML.

The new version of OX is expected to arrive late 2008, picking up the AJAX interface from OOEE, but supporting the wider feature set of OX5 ^[1].

The Hosting Edition enables web-hosting companies to provide Open-Xchange email and groupware as Software as a Service (SaaS). Therefore, Open-Xchange Hosting Edition provides an architecture that allows to integrate into existing infrastructures and it is designed in a way that a single server can handle several thousand tenants simultaneously (SaaS platform). Each tenant is handled in a context and one context contains all users of this tenant. Furthermore, the OX Hosting Edition features an AJAX user interface with rich-client-like functionality like right-click menus, drag-and-drop capabilities and e.g. the ability to handle tables with thousands of rows without significant loading times.

• Product Overview
• Open-Xchange Community home page
• French speaking user group of Open-Xchange
• Freshmeat.net
• Online Demo (Server 5)
• Online Demo (Express Edition)

1. ^ Open-Xchange product announcement 27-11-2007