http://www.linuxpcfix.com/how-to-take-backup-of-zimbra-mail-accounts-through-zmmailbox/ Backup: /opt/zimbra/bin/zmmailbox -z -m mail@yourdomain.com getRestURL “//?fmt=zip” > /backup-path/mail@yourdomain.com.zip Restore: /opt/zimbra/bin/zmmailbox -z -m user@yourdomain.com postRestURL “//?fmt=zip&resolve=skip” /backup-path/mail@yourdomain.com.zip