Convert Pegasus Mail to EML: No Technical Skills Needed
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Written By
Aradhya Jain -
Approved By
Shivam Rathore -
Updated on
March 21st, 2026 - Read Time
6 minutes
User Query: I have been using Pegasus Mail for over a decade, and it has worked well for me. However, I need to switch to a different email client, and none of them support Pegasus files directly. Someone suggested I convert my emails to EML first. Can anyone explain how to convert Pegasus Mail to EML?
Introduction: Pegasus Mail is one of the oldest email clients. It has been quietly running on Windows systems since the late 1980s, and plenty of people still use it today. Additionally, EML is a widely supported file format that stores individual emails so that dozens of email clients can open and use them. Once your Pegasus emails are in EML format, you have greater flexibility in how you open them. This guide explains the manual method and a professional DRS Softech Pegasus Mail Converter for a hassle-free solution.
How to Convert Pegasus Mail to EML (Quick Answer)
- Locate Pegasus Mail mailbox files (PMM/MBX).
- Extract emails using a compatible email client or converter.
- Convert/export files into EML format.
- Verify email content, attachments, and structure.
The Real Problem: Pegasus Mail Doesn’t Store Emails Like Modern Clients
Most people think all email clients store data the same way. They don’t.
Pegasus Mail stores emails in flat mailbox files with index references, meaning individual messages are not always stored as separate entities. By contrast, EML requires one file per email with proper MIME structure, which can lead to data misinterpretation during conversion. Short version: You’re not converting files—you’re reconstructing emails.
Manual Method to Convert Pegasus Mail to EML
Pegasus Mail doesn’t offer a direct “Export to EML” option, so you’re forced to use a workaround—typically involving an intermediate email client like Thunderbird. Here’s the step-by-step manual approach:
Step 01: Locate Pegasus Mail Mailbox Files
- Firstly, open the Pegasus Mail installation directory
- Find mailbox files (usually .PMM, .MBX)
- Copy these files to a safe location
Step 02: Install Mozilla Thunderbird
- Download and install Thunderbird. Launch the application
- Thunderbird acts as a bridge since it supports EML export via add-ons.
Step 03: Import Pegasus Mail Data into Thunderbird
- Convert Pegasus Mail files into a supported format (like MBOX) using a third-party script/tool
- Or manually recreate folders and drag content (limited success)
Step 04: Install ImportExportTools NG Add-on
- Open Thunderbird and go to Add-ons Manager.
- Search and install ImportExportTools NG.
- This tool enables EML export functionality.
Step 05: Export Emails as EML
- Right-click on the imported folder.
- ImportExportTools NG → Export all messages in the folder → EML format.
- Choose the destination location.
- Emails will be saved as individual .eml files.
Step 06: Verify Convert Legacy Pegasus Mail Data to Portable EML Files
- In the end, open EML files in any supported email client.
- Check: Email content, Attachments, and Sender/receiver details.
Limitations: Manually Convert Pegasus to EML
- This is no direct Pegasus Mail support.
- There is a high risk of missing emails.
- Folder hierarchy breaks during import.
- Attachments may become corrupted or inaccessible.
- Metadata like BCC and timestamps can be lost.
- Moreover, time-consuming for large mailboxes.
Professional Tool to Convert Pegasus Mail to EML
The DRS Softech Pegasus Mail Converter is a quick, reliable, and hassle-free process. It allows users to convert a single or multiple Pegasus emails at once. This software preserves the original email formatting and structure. No data is lost, and 100% data integrity is maintained. Designed with a simple interface, means every user (Technical and Non-Technical) can easily use it. Apart from that, you can convert Pegasus Mail to MSG and other formats.
Verified Steps for Pegasus to EML Conversion
- Download and install the DRS Softech Pegasus Converter Tool.
- Choose “Add Files” or “Add Folder” to load your Pegasus files.
- Then, you can preview and select the Pegasus emails to convert.
- Afterwards, pick EML as the Saving Format from the drop-down list.
- Lastly, apply advanced features and filters. Press Convert.
Key Features of DRS Softech Pegasus to EML Converter
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No data loss during conversion |
Maintains original folder structure |
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Extracts hidden or indexed emails |
Preserves full email metadata |
Conclusion
In this technical blog post, we explored the manual method and a professional tool to convert Pegasus Mail to EML. The manual method is useful for converting a small number of Pegasus files. But it has several limitations. That’s why it’s best to use the professional tool. This tool supports bulk conversion with several advanced features. Additionally, if you have any queries related to this tool, feel free to ask our technical support.
Frequently Asked Questions
Ans: Only if the conversion is done correctly. Pegasus Mail stores emails in indexed mailbox files, so during manual conversion, emails can be skipped, attachments may break, and metadata like BCC or timestamps can get lost. But a professional tool ensures complete data extraction, preserves folder hierarchy (1:1 mapping), and keeps all email properties intact.
Ans: It depends on flexibility. EML stores one email per file with proper MIME structure, making it universally supported by clients like Windows Mail, Thunderbird, Apple Mail, and others, while PST is Outlook-specific and MBOX is limited to certain platforms.
Ans: Yes, and you should. The DRS Softech offers a demo version that lets you preview emails and test conversion on a limited number of items, so you can verify structure, attachments, and metadata before committing.
Ans: Manually? Not realistically. Handling multiple Pegasus mailboxes requires processing different indexed files, which becomes time-consuming and error-prone, whereas a professional solution supports batch conversion, allowing you to convert multiple user folders in one go without mixing data.
