Employing rsync to migrate from an aged ZCS mailstore to a whole new ZCS mailstore may be demanded for various explanations: If you receive any faults, you may re-export, and re-import the problematic accounts by manipulating /migration/zimbra/accounts/consumers.txt appropriately and re-functioning the export command. If you can get any “broken pipe” https://www.hostscheap.com/zimbra-migration-service