We run 7.2.0_GA_2669 for a very heterogenous community project. Our Mac OSX Lion users can connect to Zimbra via CardDAV with no problems. Some of them now want to use Zimbra's CardDAV service for all their syncing. Does anybody know of a way to transfer all contacts from the "On my Mac" account (which some users currently sync via iCloud to other devices) into the CardDAV account? It seems Apple only allows this for contacts which are freshly created.