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How to import an Outlook data file into Thunderbird?

Asked by
Tech Point
2019/07/12 06:57
0 Like It
I have some old Outlook.pst files of about 32 GB. I want to import all those files into the Thunderbird mail client. Is it possible to import all my pst files into Thunderbird? I have already searched in Google but confused to choose the best option.

Please suggest
Operating System:
Windows 7
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best answer

Answered by
Franka Sommer
7 days ago
Import Outlook PST in Thunderbird format using a third-party solution. The PST to MBOX converter helps you convert the PST format to MBOX easily accessible from Thunderbird. Software export of complete PST elements in the MBOX file type.


Answered by
rose fresh
19 hours ago

0 votes

I would like to suggest you can also Try ZOOK PST to MBOX Converter tool and convert your PST file into MBOX file in just easy process. This tool can store the MBOX file after performing conversion at any desired location in this system. It is the best option for you as it is very user friendly and flexible. This tool Instantly Convert PST file to MBOX format. this tool Support 20+ Email Clients and also Converts Encrypted PST files into MBOX file.

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Answered by
Lokesh Yadav
6 days ago

0 votes


When switching to Thunderbird, you may experience difficulty in importing a standalone .pst file, since Thunderbird uses .mbox files instead and does not recognize .pst files. Workarounds do exist to import a .pst file.
  1. Use Outlook to decode the .pst file. If possible, install Outlook on the computer with Thunderbird and the rogue .pst file. 
  2. Once Outlook is installed, select "File" > "Import and Export" to import the .pst file into Outlook. 
  3. Once the messages/contacts have been successfully imported, open Thunderbird and select "Tools" > "Import" > "Mail within Thunderbird." Choose "Outlook" as the default client from which to import.
  4. Install Thunderbird onto another computer. If you can't install Outlook onto the desired computer (referred to here as "Computer 1"), install Thunderbird onto a machine with a compatible version of Outlook (referred to here as "Computer 2").
  5. Open Outlook on Computer 2. Copy the .pst file onto Computer 2. With Outlook open, select "File" > "Import and Export." In the window that pops up, choose "Import from another program or file" and click "Next."
  6. Choose "Personal Folder File (.pst)" and click "Next." Use the "Browse" button to navigate to the location of the .pst file and click "Open." Everything in the backup file--emails, contacts, etc.--will be imported into Computer 2's Outlook.
  7. Import the files on Computer 2's Outlook into Computer 2's Thunderbird. Open Thunderbird and select "Tools" > "Import." Click the "Mail" button and click "Next."
  8. Click on "Outlook" and click "Next." When the import is finished, click "Finish."Step
  9. Close Thunderbird. Click "Start" and navigate to "Your-username\AppData\Roaming\Thunderbird\Profiles.default" (where the is a string of random characters). Copy all of the included files and folders to a flash drive and move the flash drive to Computer.
  10. Navigate to "Your-username\AppData\Roaming\Thunderbird\Profiles.default" on Computer 1. Copy the files and folders from Computer 2 into that directory. All of the email info will now be available on Computer 1's Thunderbird.
I hope this helps.


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