Fix Outlook PST Import Service Provider Error in Outlook 2019
Question details
The user is unable to import a PST file created from an Exchange ActiveSync account into Outlook 2019 due to a service-provider error.
- Product
- Microsoft Outlook 2019
- Device & OS
- not provided
- Scenario
- Importing a PST file that was generated from an Exchange ActiveSync account into Microsoft Outlook.
- Observed behavior
- Outlook throws a service-provider error and fails to import the PST file, even though the file itself is healthy and can be opened normally.
Verify that your PST file is fully accessible locally on your hard drive. Do not attempt to run an import or copy operation directly from a network drive or external USB storage, as this can trigger additional connectivity issues.
Open PST Separately and Copy Folders Manually
Bypass the import wizard entirely by opening the PST as a secondary data file and manually dragging the folders into your active account.
Exchange ActiveSync accounts often do not support the direct importing of all PST folders through the standard wizard. Opening the data file directly in the application avoids the service provider protocol block.
In Outlook 2019, navigate to File > Open & Export, and click on 'Open Outlook Data File'.
Browse your computer for the target PST file, select it, and click 'OK' to mount it in your Outlook navigation pane.
Expand the newly opened PST in the left sidebar. Right-click the folders or emails you need, select 'Copy Folder' or 'Move', and choose your active Exchange account as the destination.
Recreate the Account and Recover via OST File
If you cannot extract the data from the PST, attempt to recreate the email account from the server or utilize a local OST file.
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Frequently Asked Questions
Why do I get a service-provider error when importing a PST file?
This error occurs because Exchange ActiveSync protocols do not natively support importing all folder structures directly from a PST file through the automated Import/Export wizard.
Does this import error mean my PST file is corrupted?
No. If you can successfully mount and view the PST file by going to 'File > Open & Export > Open Outlook Data File', the file is completely healthy. The error strictly relates to the import mechanism limitation.
Can I bypass this error by importing an OST file into Outlook 2019 directly?
No, Outlook does not natively support direct imports of OST files. You must either sync with the Exchange server to rebuild the data or use a third-party conversion tool to change the OST into a PST format first.
