I'm planning to support DKIM in my server, but Zimbra only has instructions on how to generate keys internaly. Since I have a secondary server which is not Zimbra based (it's a Debian 7/Postfix), this is not viable. I need a way to either have access to the private keys generated by zmdkimkeyutil, so I can import them with openDKIM, or a way to import the openDKIM keys into Zimbra. Has anyone done any of those two?
My production server is Zimbra 8.0.7, running in Ubuntu 12.4.