I can share folder in zimbra version 5.x by this xommand

zmmailbox -z -m user@domain.com mfg /[folderName] all r
I try to use this command in zimbra 6.x but I got error

unknown grantee for [foldername] ...
I don't know what command I should use for set folder permission.

If I can set permission, I want to share that folder to user
I want to know this command I can use in zimbra 6.x
zmmailbox -z -m destinationUser@domain.com cm --view contact /[destination folder] ownerUser@domain.com /[source folder]
Thank you for your help.