Convert Pegasus Mail to Outlook PST: Easy Conversion Guide
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Written By
Aradhya Jain -
Approved By
Shivam Rathore -
Updated on
March 10th, 2026 - Read Time
6 minutes
User Query: Do you want a reliable way to convert Pegasus Mail to Outlook PST format? Many users need to migrate their old Pegasus Mail emails to Microsoft Outlook, but cannot open them directly due to compatibility issues.
Introduction: Pegasus Mail is a well-known email client that has been used for many years, especially in educational institutions and small organizations. Outlook stores its mailbox data in PST (Personal Storage Table) format. Since Pegasus Mail does not use the PST format, users cannot directly open Pegasus Mail mailboxes in Outlook. To access old Pegasus Mail emails in Outlook, the mailbox data must first be converted into PST format. In this blog, we explain the manual method and a professional DRS Softech Pegasus Mail Converter for a hassle-free process.
Why Do Users Migrate from Pegasus Mail to Thunderbird?
Users migrate their Pegasus Mail to Thunderbird for several important reasons:
- Thunderbird is free and actively maintained.
- It offers better security and spam protection.
- Users can manage multiple email accounts in one place.
- Thunderbird supports modern email protocols.
- It provides a user-friendly interface.
- Furthermore, users can safely preserve old Pegasus Mail emails.
Can You Directly Migrate Pegasus Mail to Thunderbird?
No, Thunderbird does not directly support Pegasus Mail mailbox files. First, you must convert Pegasus Mail mailboxes into a compatible format such as MBOX. After conversion, you can import the emails into Thunderbird. For small migrations, users can try manual methods. However, for bulk migration and complete accuracy, a professional tool is recommended.
Understanding Pegasus Mail and Outlook PST Formats
Pegasus Mail stores its data in unique files, often with PMM or CNM extensions, or sometimes with no extension at all. These files are designed specifically for the Pegasus Mail client. On the other hand, Microsoft Outlook uses the Personal Storage Table (PST) format. An Outlook PST file can store all your emails, contacts, calendars, and other items in a single, organized file.
Why Users Convert Pegasus Mail to PST
- Outlook provides advanced features for organizing emails, contacts, calendars, and tasks.
- PST files are fully supported by Microsoft Outlook and other Microsoft applications.
- Outlook allows users to secure PST files with password protection.
- PST integrates easily with Microsoft 365, Exchange Server, and other business tools.
- Moreover, converting Pegasus Mail data to PST ensures emails remain accessible in modern systems.
Manual Method to Export Pegasus Mail to Outlook PST
There is no direct manual method to convert your Pegasus Mail mailboxes into PST files. However, users can use an indirect approach by exporting Pegasus Mail messages and then importing them into Outlook using an intermediate email client. Steps to follow:
- Firstly, open Pegasus Mail on your system.
- Now, locate the mailbox folder that contains your emails.
- Then, export the messages in a compatible format such as EML.
- Install an email client like Mozilla Thunderbird.
- After that, import the exported emails into Thunderbird.
- In the end, configure Microsoft Outlook on your system.
Limitations: Manually Import Pegasus Mails into Outlook
- The manual process is time-consuming.
- It requires multiple applications.
- Large mailbox files may not transfer properly.
- The folder hierarchy can be affected.
- Furthermore, not suitable for non-technical users.
Professionally Convert Pegasus Mail to Outlook PST
The DRS Softech Pegasus to PST Converter is a quick, reliable, and hassle-free process. It allows users to convert a single or multiple Pegasus emails at once with no data loss. This software preserves the original email formatting, structure, and metadata during the entire process. Designed in simple interface, every user can easily use it with the reliable tool. You can convert Pegasus Mail to Thunderbird Account and other formats. A free version of this tool is available to understand its features and performance.
Simple Steps to Switched from Pegasus Mail to Microsoft Outlook
- Download and install the DRS Softech Pegasus Mail Converter.
- Choose “Add Files” or “Add Folder” to load your Pegasus emails.
- You can preview and select the emails to convert. Click Next.
- Then, pick Microsoft Outlook (PST) as the Saving Format.
- Lastly, apply the advanced features/filters and click Convert.
Key Features of a Pegasus Mail to PST Converter Tool
- This tool allows you to convert multiple Pegasus Mail files at once.
- It preserves the original email formatting and structure during the process.
- You can convert Pegasus emails into several file formats.
- Make sure no data is lost during the entire Pegasus to PST conversion.
- This tool is highly compatible with all Windows and Mac versions.
Comparing Manual vs Professional to Transfer Emails from Pegasus to Outlook
| Manual Method | Professional Tool |
| Time-consuming process | Fast conversion process |
| Risk of data loss | Maintains complete data integrity |
| Limited control over emails | Advanced filtering options |
| Not suitable for large mailboxes | Supports bulk mailbox conversion |
Tips Before Converting Pegasus Mail Emails
- Create a backup of Pegasus Mail mailbox files.
- Ensure there is enough storage space on your system.
- Close other email applications during the conversion process.
- In addition, verify the converted PST file before importing it into Outlook.
Conclusion
Converting Pegasus emails into PST format is useful for modern features and improved compatibility. In this blog, we discussed the manual method and a professional tool to convert Pegasus Mail to Outlook PST. The manual is available to migrate a small number of Pegasus emails. However, it has several limitations. Thats why its best to use the professional tool. This tool supports bulk conversion with several advanced features. So, download the demo verison to understand its features and performance.
Frequently Asked Questions
Ans: No, Microsoft Outlook cannot open Pegasus Mail mailbox files directly because both email clients use different file formats. To access Pegasus Mail emails in Outlook, you must first convert the mailbox data into PST format using a proper conversion method.
Ans: Yes, a reliable Pegasus Mail to PST converter preserves email attachments during the conversion process. It maintains the original email structure, attachments, and other important properties without altering the data.
Ans: If the conversion is performed manually, there may be a chance of formatting issues or missing emails. However, using a professional conversion tool ensures that the complete mailbox data is transferred safely without data loss.
Ans: Yes, the software supports bulk conversion, allowing users to convert multiple Pegasus Mail files at the same time. This feature helps save time and makes the migration process easier for users handling large mailboxes.
