Backup Zimbra Open Source edition to a NAS with NFS

The most recent open source version of Zimbra Collaboration 8.8 has no official backup module. But with the help of scripting it is still possible to backup a mailbox. The following situation is assumed: Up-to-date Zimbra Collaboration 8.8 A file is available (emailaccounts.txt) containing all email addresses for the backup A NFS server is available …