Operate nstouwimap /path/to/person/LocalFolders /house/transferuser/mail to convert the Community Folders towards the transfer user's dovecot mailbox. Immediately after making the several batch, less than End users tab, pick out the end users you wish to assign to a specific batch, click on BATCH button and Add to Batch: Help any migration https://www.hostscheap.com/zimbra-migration-service