While I support the idea for CalDAV, CardDAV and WebDAV, a seperate Outlook Connector for Mac is needed.
Outlook for Mac does not support those protocols, nor would those protocols allow for folder sharing, out of office setup, etc.
Thank you for sharing your idea to develop an OutlookConnector for the Mac. It will be considered for future versions of OutlookConnector.
I have several users who would benefit from this - currently trialling Outlook Connector from Windows
Actually, OS/X has native support for WebDAV Open standards at an OS-level (via the iCal & Address Book apps), but the issue really comes in where ms fails to properly integrate common Open Standards.
I've encountered this problem when trying to get bi-directional sync going with Google Apps & outlook - I'm able to get sync working fine with almost *all* clients (Thunderbird, iOS, OS/X, etc) via WebDAV/CalDAV/CardDAV - but ms/office/outlook seem to be very strongly opposed to coming to the party, rather insisting on using the exchange protocol (hence the development of OpenChange)
Lluis Garcia commented
If Mdaemon support CalDav, CardDav and WebDav, native clients MAC will could to connect.
And also Thunderbird (PC and MAC) for not buy Outlook and Office Licence.