Do Outlook PST Files Have a Size Limit?

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Do Outlook PST Files Have a Size Limit?

emailhelpers.us

Do Outlook PST Files Have a Size Limit?

Outlook PST File Size Limits

Here, again, are the two formats, with their limits and typical use:

Outlook 97-2002 Personal Folders File (PST)

  • Used by:
    • Outlook 97, Outlook 98, Outlook 2000, Outlook 2002
    • IMAP and Windows Live Hotmail accounts in Outlook 2003
    • Outlook 2007 if explicitly chosen
  • Size limit:
    • 2 GB
    • Cannot be increased

Office Outlook Personal Folders File (PST)

  • Used by:
    • Outlook 2003 (with the exceptions above)
    • Outlook 2007–Outlook 2016
  • Size limit:
    • Configurable; 50 GB by default (20 GB in Outlook 2003 and Outlook 2007)
    • For performance and stability reasons, it is not recommended to increase the limit beyond 20 GB in Outlook 2003 and Outlook 2007.

As your PST file approaches the limit or the suggested maximum size (check the size via the ​Total size given in the Folder Size dialog), you can move old messages to a separate archive PST file — or delete them, of course.

 

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