wondering if you can offer some advice.
We have upgraded our zimbra system from the open source version to the purchased Professional Network edition.
The upgrade all went successfully other than during installation it complained about not being able to find the ZCSLicense.xml file, carried on with the installation, then installed the key through the admin console afterwards. All seemed to work successfully.
Now the problem. After upgrade we have noticed that even though user mailboxes exist, all the old emails have disappeared. New emails are coming in fine, but user mailboxes that used to have hundreds of megs are now down to just a few megs from new incoming emails.
We have tried to re-index mailboxes, but to no avail.
Any advice appreciated.