This command will export accounts belonging to the specified area during the accounts-push-knowledge.tgz file under the /decide/zimbra/tmp/modules/push folder. Once the accounts are migrated to Zimbra Daffodil (v10) server According to Migration of accounts segment, import the Cellular knowledge using the migration utility: Intuit Support allows you quickly craft appropriate articles https://www.hostscheap.com/zimbra-migration-service