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MichaelFlag for United States of America

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Missing Emails from pst

I exported my work mailbox to a PST.  It was 6GB and contained contacts, calendar items and mail items from 2012-2016 and was around 80,000 mail items.  The inbox is about 3.2GB and Sent Items is about 2GB (when I right click and view the Folder Size).  I exported the entire Mailbox (twice) to two separate files so I am certain the file is not corrupted.  Not password protected.

I have copied the PST to my laptop hard drive and added it under Account Settings as an additional Data File.  It shows in the pane on the left as a new mailbox called "Outlook Data File".  However, when I click on Inbox or Sent, the oldest email is only Sept 2015, which means it's missing over 2 years of emails.  I have confirmed that my Calendar items date back to 2012 and so do my contacts.  But my email item count in my Inbox is only about 17,000.  It should be double that.

As a sanity check:  Around mid-2015, I set up Outlook on my home computer and told it to DOWNLOAD all of my emails as an OST and the OST was around 5GB.  I verified that I had year 2012+ emails at that time which tells me the 6GB export I recently did should no doubt include ALL of the emails that I had.

Am I doing something wrong?  Is Outlook somehow archiving this old email or suppressing it in some way?
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Rob Henson
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Is there a filter in place so the older mails are filtered out from the current View.

From the View menu choose View Settings and one of the the Options in there is Filter. On the Messages tab there is an option to Filter for Time but I don't see an option for filtering out those other than older than a month.
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Edwin Hoffer
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I have copied the PST to my laptop hard drive and added it under Account Settings as an additional Data File.

You do not need to add the PST as an additional Data File.

You can just open the PST file in MS Outlook.
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No luck.  I "opened" the pst vs going to Account Settings and adding a new Data File and no luck--same item count.  

I'm reluctant to go out and buy a PST recovery software (as some have suggested) because I don't think it's corrupt.

However, given that my OFFICE computer had cached mode enabled for 12 months, is it POSSIBLE that when I exported my "Mailbox" it only exported my .ost?  That's the only thing I can think of