The Zarafa groupware provided email storage on the server side and offered its own Ajax-based mail client called WebAccess and a HTML5-based, WebApp.

The software handles a personal address-book, calendar, notes and tasks, "Public Folders", a shared calendar (inviting internal and external users, resource management), exchange of files, and video chat.

Introducing and maintaining a dual-licensing strategy, on 18 September 2008 Zarafa released the full core software, that is the server side software stack, under the GNU Affero General Public License, version 3 (AGPLv3).

[10] Zarafa provides its groupware functionality by connecting the Linux-based server with Outlook clients using MAPI.

[11] It supports Exchange ActiveSync compatible devices (Symbian, Pocket PC, iPhone (firmware 2.0 and higher), Android (version 2.1 and higher), Nokia (mail4Exchange)) implementing the ActiveSync protocol and using the Incremental Change System (ICS) provided by the PHP-MAPI extension.