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Written By Shivam Rathore
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Updated on March 11th, 2026
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“I am Joe Campbell, an IT administrator from an MNC organization in London, transitioning from Microsoft Outlook to Mozilla Thunderbird. I have years of archived communications stored in PST format, and instead of opening each email individually, I want to convert them all to EML. Which is the most feasible way to convert a PST file to EML with or without Outlook, securing my data?” |
Microsoft Outlook, the popular client, maintains its data in a Personal Storage Table (PST), but it keeps it locked. Whereas other modern and legacy platforms like Mozilla Thunderbird, Windows Live Mail, Apple Mail, etc., support EML format for data management. So, to bridge this file format difference during email client shifts, it is essential to convert PST to EML using Outlook or a trusted PST Migration Tool. Then only you can access emails with ease and no restrictions without data worries. To learn more about this conversion, explore this guide till the end.
There are two popular manual solutions and a dedicated converter tool available to execute the conversion. The manual methods require no third-party software and offer complete control, but have limitations too. Whereas the software works automatically, requires no effort, and is highly secure. Go through all the methods below.
This method involves using the MS Outlook application, an earlier version, which supports both PST and EML formats. The steps are:
Pros: Email formatting is somewhat maintained, and attachments are embedded sometimes.
Cons:
Another interesting solution for the conversion of Outlook PST files into EML format is using Mozilla Thunderbird. Follow these steps:
This is how Thunderbird helps with the PST to EML conversion with no costs.
Pros: The method is efficient to handle files at large upto an extent.
Cons:
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Quick Recap: Who Needs to Save PST to EML?
Now, all of them may have bulk PST volumes that can not be definitely converted effectively into EML with the above manual methods. So, what to do? |
To overcome the loopholes of the manual method, EmailProHelp PST Migration Tool is a recommended solution. This software instantly bulk converts multiple Outlook PST emails into email messages within minimal time altogether. Additionally, it keeps the folder hierarchy and metadata intact and has a user-friendly interface. Moreover, the dedicated tool offers you to convert PST to PDF and other formats and even offers a Demo Version for free conversions and evaluation.





Email formats determine the portability, accessibility, and storage of your data within the specific email clients. While PST is bound to the Outlook applications and its data remains inaccessible on other platforms, EML is widely accepted. This blog specifies numerous solutions to convert PST to EML on Windows. You can even use the Thunderbird method and professional tool on your Mac systems. Although the manual method will convert your emails, it doesn’t ensure data security. Hence, the best way is to get the EmailProHelp PST Migrator for flexible and precise conversions.
Ans. The best and safest way to secure PST files to EML with no data loss is using the Outlook drag and drop or the professional PST to EML Migration Tool.
Ans. Yes. You can bulk export PST emails in EML format with the smart converter software. It allows adding single and multiple files simultaneously and converts them at once.
Ans. The best tool is PST Migrator by EmailProHelp for PST to EML conversions. It works offline, has a trial version for test conversions, and is trusted by experts.
About The Author:
Meet Shivam, an experienced SEO executive and content strategist. He combines creativity with strategy to craft engaging content that connects with audiences and supports brand goals. With strong expertise in digital marketing and content planning, Shivam helps businesses thrive online.