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How to Convert PST to EML with 100% Accuracy? Best Methods

  Rollins Duke
Rollins Duke   
Published: July 22nd, 2026 • 6 Min Read

Summary: Are you wondering how to change your PST files into EML format on your Mac, Windows or Linux machine? Well, first, you need to know that PST file is the special format associated only with Microsoft. It is impossible to access the PST files without the help of Outlook or some other program that can support PST files. EML format is a format used universally as per RFC 5322 standard for email storage. When we say converting PST files into EML files, it is not just changing the file extension but actually transforming the PST file for compatibility.

Most people need to perform conversion of PST files into EML files for the purpose of transferring their files from one platform to another and accessing the PST on many different operating systems like Mac or Linux or for the purpose of mail forensics and audit. There are three basic methods you can use to perform your conversion:

  • Free Method of Legacy Outlook Drag and Drop.
  • Thunderbird Bridge Method
  • Professional PST to EML Converter

 Why Convert PST to EML?

  • Compatibility: Outlook stores its data in PST format, which can only be opened with an Outlook account. If you want to read PST files in multiple clients, then you must convert them into EML format. The EML file is supported by a large number of email clients.
  • No Risk of Data Loss: The PST file stores complete data, so if it gets corrupted or damaged, your complete data will be lost. EML stores only a single email; if it gets corrupted, then the rest of the emails will remain intact.
  • Easy to Share: EML file format is the simplest format to share a single email file. If you need to send specific emails or email threads to colleagues or clients, converting them to EML format simplifies the process.

How to Convert PST to EML Manually?

Method 1: Drag and Drop in Outlook for Mac

In this way, we will take advantage of the Outlook for Mac’s MIME management ability. One can just drag and drop one PST file email from the older version of Outlook to convert it to EML format. PST file should be there in the Mac Outlook environment before proceeding with this method. In case it is not, it can be obtained from the File > Import > Outlook Data File (.pst) option. Please refer to the working steps mentioned as below:

  1. At the start, run the Legacy Outlook on your Mac device.
  2. Create a folder on your Mac desktop.
  3. Now, select all the PST emails.
  4. Export to EML by dragging and dropping the selected files.

Method 2: Using Thunderbird Bridge on Windows

You may convert PST files into EML format for free on any Windows PC with the use of Outlook MAPI functionality in Thunderbird and with the use of ImportExportTools NG plug-in. However, just make sure that you have the right version of both Thunderbird and Outlook based on whether they are 64-bit or 32-bit before you begin following the next steps.

#1: Integrating PST to Thunderbird with MS Outlook

  1. Launch the Thunderbird Email Service. Once there, click the Tools tab.
  2. Click on the Import option from the list.
    select import
  3. Select Import from Outlook, and click Continue.
    select import from Outlook
  4. Select the Mail Messages option in Items section and click Continue.
    select mail message
  5. When done, hit the Start Import button.
    click start import

#2: Change PST to EML using ImportExportTools NG plug-in

  1. Open the Thunderbird Email Services and perform a right-click on the folder.
  2. Then select ImportExportTools NG > Export All Messages in Folder > EML Message Format.
  3. Now choose where you would like to save your output files on your computer.
  4. Finally, navigate to the appropriate folder and see all the files in EML format.

One thing to note here is, Improper Outlook configurations or restricted MAPI integration will cause this method to fail.

Convert PST to EML in Bulk Using Professional Utility: BitRecover

If you are searching for a solution that doesn’t rely on Outlook and which can batch-convert PST to EML files systematically preserving nested attachments, metadata and digital fingerprints, you should try the free version of the PST File Converter Wizard that can convert orphaned and damaged PST files to EML format. The program employs a bit-by-bit mapping process which contributes to total accuracy when converting data in bulk.

  1. Firstly, install and run the PST to EML converter tool.
    convert PST to EML without Outlook
  2. Next, click on the Select Files or Select Folders option to add PST files.
    click select files or select folders
  3. Now, for selective PST to EML conversion, select the PST folders from the folder tree.
    select PST email folder
  4. After that, choose the saving option as EML from the drop-down menu list.
  5. Thereafter, choose the destination path and output EML file name. You may choose auto file naming based on Date, From, To, and Subject combinations.
    select file naming option
  6. Finally, click on the convert button to start PST to EML conversion process.
    start PST to EML conversion without outlook

Notable Benefits of Professional PST to EML Converter Utility

  • Bulk Conversion Supported: The software allows users to convert unlimited data files in bulk at one time without any file size limitations. So, you can save your time and effort.
  • Retains Original Formatting: The tool guarantees to retain complete metadata integrity during conversion. Throughout the entire switchover process, i.e., the entire Cc, Bcc, subject, date, time, attachments, etc.
  • Standalone Utility: You can run this software without installing third-party tools or Microsoft Outlook.
  • Recovers Corrupted Files: PST to EML Converter can convert and recover corrupted PST files to a healthy format. The software utilizes B-Tree node reconstruction method to fix damaged Outlook data files
  • All Outlook PST Compatibility: The PST to EML converter supports PST files of all Microsoft Outlook versions. In short, users can convert both ANSI and Unicode PST files to EML format using this professional utility.
  • File Naming Option: The PST to EML conversion tool offers a file naming option to manage the converted EML file in a better way. These file naming options are based on date, time, from, to, cc, subject, etc. combinations for easy management.
  • Multiple Saving Options: This utility is also capable to convert PST to PDF, MBOX, EMLX, HTML, and several other standard file formats.

Concluding Words

Moving PST files from Outlook to the EML format helps the users manage their data. Manual techniques like drag-and-drop and the use of the Thunderbird Bridge work well when it comes to small PST files, but not for bigger ones. Dedicated software when it comes to PST-to-EML conversion provides good security solution and scalability necessary for this type of task.

Questions & Answers

Q1: Can I change PST to EML without having Outlook?

A: Yes, you can use it totally on its own.

Q2: Is it true that email attachments and other metadata will be preserved.

A: Yes, everything including attachments, folder structure, and header information will be the same.

Q3: Is it possible to convert more than one PST file in a single go?

A: Yes, batch processing of one or more files/folders is allowed in the software.


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