I migrated a mail account from an exchange server to Zimbra, employing mbsync. This permits ongoing synchronization, and mapping folders to subfolders. # The IMAP server you want to copy mails from. zimbra@zimbra:/backups/zmigrate$ Be sure to clear away each of the email accounts with the file /backups/zmigrate/emails. Cutover methods contain https://freewebmailzimbramigratio89563.verybigblog.com/27009063/not-known-factual-statements-about-free-mail-zimbra-migration