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Corrupt PST file

I think that I have a corrupt PST file - it's 3.4Gb in size
When I try send/receive on Outlook - I get a send/receive error
Is there a maximum size allowed ?
Anything I can do ?

If I was half as smart as I think I am - I'd be twice as smart as I REALLY am.
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Comments

  • Keep_pedalling
    Keep_pedalling Posts: 23,548
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    edited 17 December 2025 at 4:19PM
    Yes there is and it is way below that file size. You could upload it to a file sharing site.
  • bazdvd
    bazdvd Posts: 248
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    edited 17 December 2025 at 9:15PM
    its probably a maximum attachment size thats set by your email provider as an outlook data file can be upto 50 Gb in size
    Who are you with?
  • vacheron
    vacheron Posts: 2,822
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    Is your PC an older system? Because if your outlook file is stored on a hard drive that is formatted with the FAT32 file system, this has a maximum file size of approximately 4GB which could be one reason. 
    • The rich buy assets.
    • The poor only have expenses.
    • The middle class buy liabilities they think are assets.
  • Could use WE TRANSFER - use it on a regular basis - and it IS FREE - think file size is around 20gb max
  • returnofghandi
    returnofghandi Posts: 44
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    edited 18 December 2025 at 10:32AM

    If that doesn't work, try a repair of Office.

    I am running Office Pro Plus 2021 and my 'archive' pst file is currently 3.78Gb and working correctly.
    Sorry! Did the middle of my sentence interrupt the beginning of yours!
  • wongataa
    wongataa Posts: 2,770
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    Outlook, the fully featured one with PST files, is overkill for home use and is aimed at businesses.

    Once the issue is sorted I would seriously think about moving to another email client where you won't ever have to deal with PST files ever again.
  • vacheron said:
    Is your PC an older system? Because if your outlook file is stored on a hard drive that is formatted with the FAT32 file system, this has a maximum file size of approximately 4GB which could be one reason. 

    No its NTFS....

    If I was half as smart as I think I am - I'd be twice as smart as I REALLY am.
  • wongataa said:
    Outlook, the fully featured one with PST files, is overkill for home use and is aimed at businesses.

    Once the issue is sorted I would seriously think about moving to another email client where you won't ever have to deal with PST files ever again.
    I use Office Pro Plus (2019)

    If I was half as smart as I think I am - I'd be twice as smart as I REALLY am.
  • Yes there is and it is way below that file size. You could upload it to a file sharing site.

    What is the maximum allowable PST file then ?
    I am not trying to transfer it to another PC - I am simply getting an error when running Outlook

    If I was half as smart as I think I am - I'd be twice as smart as I REALLY am.
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