I actually have my ZCS server running:
$ zmcontrol -v
Release 6.0.10_GA_2692.UBUNTU10_64 UBUNTU10_64 FOSS edition.
We have a clean, new, installed server running latest ZCS v7.1.4.
Is it possible to migrate just the domains, users and mailboxes from the old server to the new server?
If this isn't possible due to the different versions, the other option would be to install v6.0.10 on the new server, migrate just the users, domains and mailboxes, and then do the upgrade to v7.1.4.
The idea is to reinstall the old server after that with v7.1.4 and leave it as an offline backup server.
Thanks in advanced.