When importing a pst or even opening it the outlook data file works fine but as soon as you copy mails over to the exchange mailbox or import to the exchange they disappear after a few seconds. 

The import process appears to complete successfully and the imported items show up in Outlook 2013 - but only for a second or two. Then they disappear completely, nowhere to be found. This happens with  contacts, emails and calendar items and the result is the same whether I import the entire mailbox or just a folder at a time.

I must add, I have tried multiple accounts, other versions of outlook eg 2010.  So this must be an exchange problem.

We are running exchange 2013 on server 2012

Our mail issue is similar to this thread

http://social.technet.microsoft.com/Forums/office/en-US/84f99f01-d1c4-4a61-ba8c-7b27cab39c52/outlook-2013-imported-or-copied-items-from-pst-file-disappear-after-a-few-seconds

We also have an axigen server on site.  The pst involved has been part of the axigen system in the past but a long time ago.

It worked fine on exchange 2008. But on 2013 not so well.

I have tried every solution so far and hope someone can help me here.