I'm evaluating options for migrating our ZCS Network Edition 6.0.15 installation to 8.x (either ZCS NE or ZCA (Appliance)). We've got about 2.500 domains and about 20.000 mailboxes.
I know about the ZeXtras toolkit, but it doesn't work for me (login to admin console hangs/doesn't work - I'm in contact with them). Because of that, I'm looking for other options. One would be to use zmztozmig; for this, I read the Zimbra to Zimbra Migration wiki page.
Account preferences, I might understand and accept, especially seeing that we're going from Zimbra 6 to 8.Originally Posted by Zimbra to Zimbra Migration wiki page
But losing shared files and appointments wouldn't be so great. Can you provide some hints, about how I could make sure, that the account IDs match?
And is that truly all that will be lost? What about filter rules and signatures? Do they "survive" a migration — or is that part of the "account preferences"? Any workarounds, to not lose that?