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Zarafa Collaboration

The Zarafa Collaboration Platform is an open source software suite running on linux, capable of replacing Microsoft Exchange. Its architecture is very modular, makes use of standards wherever possible, and integrates with common open source components which allows you to share your email, calendar and contacts via Outlook or Webaccess. With the Active Directory plugin Zarafa can be easily integrated in your exisiting Windows network.

Zrafa Email


Not only can you access your private email, but Zarafa also allows you to share your mailbox with colleagues via an advanced permissions system.
Group mailboxes and public folders can be used for all incoming information, support or sales emails and with the server-side rules wizard you can organize your email automatically. More…

Zarafa CalendarCalendar

Share calendars, plan meetings with your colleagues with free/busy information, send meeting requests or book resources. You can use any of these features via the Outlook client or Zarafa WebAccess.
The CalDAV gateway even synchronizes your calendar with other clients. More…

Zarafa ContactsContacts

All internal Zarafa users and groups are available in a global address book. Of course you can manage personal contacts and distribution lists, but centrally maintained contact folders are also available. More…

Zarafa TasksTasks

You can keep personal task lists or share them with colleagues to work much more effectively. More…


Softdelete system Possibility to restore items after they are deleted
Out of office Enable out of office reply during holidays
Offline support Have your private mailbox available when no connection is available
Secure remote Outlook connectivity Connect Outlook remotely over HTTPS
Single Sign On Automatic login to Outlook using your Windows credentials
MSI installer The Zarafa Windows Client comes in MSI format and can be easily deployed
Auto update service Ability to download the latest client from the server automatically after an update (for Professional and Enterprise editions)

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