Amalgamate PSTs?

Outlook 2010.  
A user has a number of psts that we would like to amalgamate.


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Emmanuel AdebayoGlobal Windows Infrastructure Engineer - ConsultantCommented:

Yes, i can say this is possible to achieve, but not as adding the pst t

What you haev to do is open all the PSTs in Outlook, make one of them to be the main and move messages from inbox, sent item etc from the other PSTs outlook to the main.

For more information on how todo this please check the link below


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1) Export all the PST
2) Open the outlook configure the main account
3) import all the PST.
If number of PST's are less then you can use outlook as explained in above posts..
Refer :

However you may need keep and eye on the size of the PST. Large PST files may give you performance issues..
Ref :
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CHI-LTDAuthor Commented:
He has about 6-7 psts linked to outlook.
i expect he has 1 or 2 large ones.
I would expect problems with any post file which is larger than 5GB
Emmanuel AdebayoGlobal Windows Infrastructure Engineer - ConsultantCommented:
I have my PST over 5GB outlook 2010 without no issue, it has my email from over 10years.

You are a lucky guy.. :-)..  BTB, I didn't mean to say all PST's will have issue.. I have 30+ GB & 50+ GB PST files in my environment.. but the possibility of performance issues and corruption is very high in those cases.. and in case of any corruption it's difficult to recover it without a third party tool..
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