Edit /opt/zimbra/conf/localconfig.xml to update the following with the values with the localconfig.xml file around the Old Server: If you can get any problems, it is possible to re-export, and re-import the problematic accounts by manipulating /migration/zimbra/accounts/users.txt appropriately and re-operating the export command. If you obtain any “broken pipe” sort problems https://www.hostscheap.com/zimbra-migration-service