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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 response PDostiyar What I am looking to do is Export a .PST and am wondering if it will create separate .PST files when exporting a large mailbox from Outlook. I know when doing the "New-MailboxExportRequest" powershell command in Exchange online it creates 10GB .PST files until the whole mailbox is exported. I just dont know if Outlook does the same thing.

Willjmoo's avatar
Willjmoo
Brass Contributor
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

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