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PST Files FAQ & Troubleshooting

Updated today

For instructions on how to upload a PST file to SigParser, review the PST Files (Email Archive) article.

Why isn’t my PST upload working?

  • You must close Outlook in order to upload your file. If Outlook is open and running, it cannot upload your file.

  • Check that your internet connection is stable.

What if my file is password protected?

  • That's fine. We are still able to open the file. PST file password protection isn't very good. It's mainly Outlook that can't open the files.

Only a few emails were found in a large PST file

  • The PST file may have been exported with the wrong configuration so that none of the email addresses were included in the file. If you open the PST file in Outlook and open an email can you see the email addresses for the people in the From, To and CC fields? If not, you may need to reconfigure the export settings and try again.

  • Did you convert an OST file to a PST file? SigParser can't always process PST files that were converted from OST files. More info can be found HERE.

No Contact Records were generated

  • SigParser is unable to identify any Contact or Company records if the PST file did not include any email addresses. The file likely only contains names without the associated email addresses, which prevents SigParser from extracting contact information and signatures.

  • This is usually a setting that can be adjusted when you export PST files from Outlook. You can verify this yourself by opening one of your PST files in Outlook, selecting an email, and viewing the email header - you'll likely see that only names appear, with no email addresses included

  • We suggest trying Mimecast E-Discovery Service to export the emails rather than Microsoft 365.

How is the PST estimate generated?

  • After you upload your PST file, we will analyze the number of emails included in your PST. The price is determined by the total number of emails in your PST.

How large can the PST file be?

  • We suggest not uploading a PST file larger than 100GB. We might not be able to process a file that large.

My PST job is stuck in the "Queued" state?

How long do you keep my file?

  • We keep the PST files you upload for 30 days. They'll be automatically deleted whether you purchase a PST extract or not.

Does SigParser pull signatures from the entire thread or just the last email?

  • SigParser will pull email signatures from the email threads.

Does SigParser automatically link the PST to the Mailbox based on the msg file? Do I need to do multiple cases and searches, or I can just do one.

  • SigParser will associated the PST to the mailbox. You can import a single PST file containing multiple mailbox data.

My PST file estimate disappeared?

  • You have 15 days to purchase the PST file you upload. If you don't, we'll delete it.

  • You might notice we keep the file for 30 days but you only have 15 days to purchase. This is so if you purchase on day 15 and the file is massive we have 15 days to process it before it is deleted.

More about Outlook data files

If you have any questions, send us an email at support@sigparser.com. You can also book a demo session HERE.


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