How to Convert Emails to PST Files - 3 Most Popular Clients

How to Convert Emails to PST Files? Find methods to do this in the 3 most popular desktop email clients. Verify the information via the linked YouTube video, Microsoft Official site, Thunderbird official site, and Apple official site.


In the world of email management, the ability to convert emails to PST (Personal Storage Table) files is quite useful. PST files are commonly used in Microsoft Outlook to store email messages, contacts, and other data. However, different email clients require different methods for this conversion. In this article, we'll explore how to convert emails to PST files using three popular email clients: Microsoft Outlook, Mozilla Thunderbird, and Apple Mail.

I. Microsoft Outlook - Convert Emails to PST

Microsoft Outlook provides a straightforward method for converting emails to PST files:

  1. Open Microsoft Outlook on your computer.
  2. Navigate to the folder that contains the emails you want to convert.
  3. Select the emails you wish to convert to PST. You can choose single emails, multiple emails, or entire folders.
  4. Click on File in the menu bar and select Open & Export.
  5. Choose Import/Export to open the Import and Export Wizard.
  6. Select Export to a file and click Next.
  7. Choose "Outlook Data File (.pst) as the file type to export to and click Next.
  8. Select the folder you want to export (usually the folder where your selected emails are located).
  9. Choose a location on your computer where you want to save the PST file.
  10. Name your PST file to make it easily identifiable.
  11. Select the desired options for handling duplicates, and click Finish to start the conversion.
  12. Outlook will prompt you to set a password if you want to protect your PST file. You can choose to set one or leave it blank.

Your selected emails will now be converted to a PST file and saved in the location you specified.

II. Mozilla Thunderbird - Convert Emails to PST

Mozilla Thunderbird, a popular open-source email client, uses MBOX format to store emails. It does not have an in-built option to convert emails to PST. So, you need to use trusted software to convert MBOX format to PST format.

  1. Launch the SysTools MBOX Converter.
  2. Click on Add Files.
  3. Select Thunderbird and click Next.
  4. Choose the profile where your emails are present.
  5. Let the software open all the emails in its interface.
  6. Click on Export from the top.
  7. Here, choose PST and select the destination to save the file.
  8. Click on the Export button to start converting emails to PST format.
  9. All done!

With these steps, you can convert emails from Thunderbird to PST format.

III. Apple Mail - Convert Emails to PST

Apple Mail, the default email client for macOS, doesn't have native support for exporting emails to PST files. However, you can still achieve this by following these steps:

  1. Open Apple Mail on your Mac.
  2. Go to the Mailbox menu and choose the Export option.
  3. Select the mailbox you want to convert to PST.
  4. Finish exporting the emails to your desktop. It will be presented in MBOX format.
  5. Now, download MBOX to PST Converter Mac.
  6. Launch the converter tool and select the Apple Mail MBOX files you saved to your desktop.
  7. Choose PST as the output format and start the conversion process.
  8. Once the conversion is complete, you'll have a PST file containing your Apple Mail emails.


Converting emails to PST files is quite useful in email conversion scenarios. While Outlook offers a straightforward solution, email clients like Mozilla Thunderbird and Apple Mail require third-party tools to achieve the same result. By following the steps outlined for your specific email client, you can easily convert your emails to PST format.

08 Sep 2023

Microsoft Outlook
Apple mail

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