Applying rsync emigrate from an old ZCS mailstore to a completely new ZCS mailstore might be demanded for multiple motives: If you obtain any faults, it is possible to re-export, and re-import the problematic accounts by manipulating /migration/zimbra/accounts/consumers.txt accordingly and re-operating the export command. If you obtain any “broken pipe” https://www.hostscheap.com/zimbra-migration-service