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charlie4872's avatar
charlie4872
Brass Contributor
Jul 17, 2020
Solved

Outlook PST Export Question

Hello I have a question about how Outlook handles exporting a PST file for a very large mailbox. If I were to export a attached shared mailbox that is 103GB big, does Outlook portion it out in 10GB c...
microsoft 365
outlook
  • Willjmoo's avatar
    Willjmoo
    Jul 20, 2020

    charlie4872 the bad news is no, Outlook will not be able to split the .PST, it just exports as a single .PST

     

    You could look to use a eDiscovery and export a date range to then get the pst size down.

     

    I know third party tools also can do this though have not tried these my self so cant recommend one

charlie4872's avatar
charlie4872
Brass Contributor
Jul 20, 2020

Thanks for the reply Willjmoo So Outlook would just export on large 100GB .PST file that would probably be unusable correct? My thinking is if I were to do this in Outlook I would just select individual folders If needed and that would be one workaround to get smaller .PST files. Otherwise I agree the best way to do this would be to have the Exchange admin team do the export. Just wanted to confirm.

 

Thanks.

Willjmoo's avatar
Willjmoo
Brass Contributor
Jul 20, 2020

no problemscharlie4872 

 

a 100GB .PST would not be nice to work with, you can like you say export smaller chunks but this will take a long time, if the Admin can do it via an ediscovery that would be best

 

good luck

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