Welcome to OpenChange
Download OpenChange 2.0 QUADRANT
OpenChange 2.0 QUADRANT is the latest release available for download. Download packages for your Linux distributions, sources and GPG signature:
OpenChange is a portable Open Source implementation of Microsoft Exchange server and Exchange protocols. It provides a complete solution to interoperate with Microsoft Outlook clients or Microsoft Exchange servers.
OpenChange client-side library is used in existing messaging clients and is the solution in new projects to communicate natively with Microsoft Exchange and Exchange-compatible servers. OpenChange server is a transparent Microsoft Exchange server replacement using native Exchange protocols and does not require any plugin installation in Outlook.
OpenChange is a member project of the Software Freedom Conservancy.
OpenChange at SambaXp 2013
From May 14th to 17th, 2013 , OpenChange will participate to the samba eXPerience conference in Göttingen (Germany). Julien Kerihuel will present a talk entitled OpenChange 2.0 Ecosystem.
With OpenChange 2.0, small and medium businesses targetting complete interoperability with Microsoft Exchange server have started to evaluate and use OpenChange server and Samba4 AD in production. This talk will provide an overview of OpenChange latest features, pro and cons, current projects, collaboration and opportunities happening in OpenChange ecosystem. The last part of the presentation will focus on the 3.0 milestone and its potential benefits for final users and service providers.
OpenChange 2.0 QUADRANT Released!
The OpenChange project team is proud to announce the release of
OpenChange 2.0 QUADRANT.
This major release provides Outlook Anywhere support for OpenChange server, formely known as RPC over HTTP. This service allows clients using Microsoft Outlook to connect to their Exchange servers from outside the corporate network.
See the release notes for more info »