Limitations of Funambol Outlook Sync client with Zimbra hosting

Synchronizing calendar, contact, and task data between Microsoft Outlook and our Zimbra server has a limitation: the Funambol Outlook Sync client plugin in use does not support Outlook 64bit. Therefore, to sync calendar, contact, and task data between Microsoft Outlook and Zimbra server through the Funambol Outlook Sync client plugin, you must use outlook 32bit. Supported and unsupported combinations:

• Windows 32 bit with Outlook 32 bit works.
• Windows 64 bit with Outlook 32 bit works.
• Windows 64 bit with Outlook 64 bit does not work.