EML to Outlook Transfer is designed to streamline the migration of individual messages and entire folder hierarchies into Microsoft Outlook. The software provides flexible export options, – you can generate a clean, standalone .PST file on your local drive or import messages directly into an existing Outlook profile and filter converted emails by From, To, Subject, Date and other email tags.
The built-in processing engine handles email files generated by various desktop clients, including Mozilla Thunderbird, Windows Live Mail, eM Client, and Apple Mail (EMLX). For users moving messages from Thunderbird, extracting data as standard EML files ensures that all embedded media, custom flags, and folder trees remain fully preserved.
Thanks to an intuitive, wizard-driven interface, the entire transfer process requires only a few clicks, making large-scale mailbox consolidation straightforward for both individual users and IT professionals.
EML to Outlook Transfer video guide
Watch how EML to Outlook Transfer locates source directories, scans mailbox contents, and packages messages into an Outlook-ready PST file in just a few minutes. EML to Outlook Transfer processes emails from virtually any client, enabling you to browse, reply to, organize, and archive your messages using standard Outlook features.
* Free Trial converts limited number of messages| Operating System | Microsoft Windows® Vista or higher |
| Microsoft Office | Microsoft Outlook® 2003-2021 (standalone) |
| Outlook Account | At least one Outlook profile (email account) should be configured |
| Source files | *.eml files |
| Hard Drive Space | 48 MB minimum |
| Available Memory | 4 GB for 32-bit and 8 GB or more for 64-bit operating systems |
| Processor | Pentium IV 2 GHz or faster |
| Display | Color display, set to at least 1024 X 768 resolution |
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Why Manual Email Migration Is Inefficient
Moving emails between different platforms is rarely as simple as copying files. While individual .eml files store standard RFC-822 message text, Microsoft Outlook organizes data inside structured containers called Personal Storage Tables (.pst). These files hold not only message bodies, but also embedded media, attachments, read/unread states, and custom metadata.
When attempting manual imports via drag-and-drop, Outlook often replaces original send dates with the current import timestamp, strips inline images, and ignores subfolder arrangements. For businesses and users with years of correspondence, manual transfer is time-consuming and prone to errors. An automated converter eliminates these bottlenecks by mapping data directly into Outlook’s native structure.
EML Transfer Software Key Technical Features
1. Preserves Complete Folder Hierarchies
The software mirrors your source directory structure inside Outlook. If your archived emails are organized into projects, clients, or yearly archives, every subfolder is recreated without requiring manual sorting after migration.
2. Multi-Client Source Compatibility
EML is an open standard utilized by diverse desktop applications. The converter processes files exported from:
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- Mozilla Thunderbird: Seamlessly move local mail folders without database corruption.
- Windows Live Mail / Windows Mail: Upgrade legacy Windows archives to modern Outlook versions.
- Apple Mail (EMLX): Converts Mac OS message exports into Windows-compatible Unicode formats.
- eM Client, The Bat!, Eudora, and IncrediMail: Imports individual message backups with full metadata intact.
To learn more about how message standards operate, read our overview on what the EML file format represents.
3. Unicode Output and PST Splitting
Legacy ANSI PST files were restricted to 2 GB limits. This tool creates modern Unicode PST files capable of storing up to 64 TB. To keep your mail databases healthy, you can also use the built-in option to split large PST files into smaller parts during conversion.
4. Attachment and Encoding Integrity
Non-Latin character sets (such as European, Asian, and Cyrillic special symbols) often fail during manual imports. The converter translates internal headers and character sets on the fly while safeguarding all attached files, documents, and embedded images.
Typical Migration Scenarios
- Switching Email Clients. Moving from Thunderbird, Apple Mail, or legacy desktop clients to a corporate Microsoft Outlook environment.
- Operating System Upgrades. Transitioning data from older Windows installations (where Windows Live Mail was installed) to Windows 10 or Windows 11.
- Disaster Recovery. Extracting raw EML messages from damaged databases and packaging them back into a clean, working PST file.
- Archiving Mailboxes. Consolidating scattered desktop message files into a single, searchable offline storage file.
Need detailed step-by-step guidance? Follow our comprehensive tutorial on how to import EML files to Outlook for exact configuration options and screenshots.
What users say about EML to Outlook Transfer
EML to Outlook converter is a lifesaver! I had thousands of important emails saved in EML format and needed to get them into my Outlook account quickly. This software made the process incredibly easy and intuitive, and saved me hours of manual work. Highly recommended!
Marco Palandri - Switzerland
I was hesitant to buy EML to Outlook Transfer at first, but I am so glad I did. The software is incredibly easy to use and efficient. It transferred all my EML files into Outlook with ease and accuracy. I also appreciate the helpful customer support team who answered my questions promptly and professionally.
Björn Birkholz - Germany
If you need to transfer EML files to Outlook, this is the software to use. The interface is simple and straightforward, and the transfer process is lightning-fast. I was able to transfer thousands of EML files to my Outlook account without any issues. Thank you, Outlook Transfer, for creating such a reliable and useful tool!
Office of Risk Management - King County
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EML to Outlook Transfer delivers fast, reliable, and intuitive performance for every conversion task.
* Free Trial converts limited number of messagesWhy Choose EML to Outlook Transfer?
1. High-Speed Email Migration Engine
EML to Outlook Transfer is built for high processing speed and data accuracy. The engine parses message files rapidly, preserving header fields, text formatting, and attachments across large archives without dropping records.
The streamlined wizard interface lets users initiate migrations without manual configuration hurdles, ensuring smooth file handling from start to finish.
2. Accurate Import into Microsoft Outlook
Data integrity is paramount during email migration. The software maintains original text encodings, HTML styling, and inline attachments across all supported versions of Microsoft Outlook, ensuring full compatibility even with messages created under non-Windows operating systems.
The software automatically adapts message formats into native Outlook structures (Personal Storage Table), ensuring that every sender, recipient, timestamp, and attachment matches the original source archive.
3. Recreate Your Folder Structure in Outlook
The hierarchy of your mail folders remains identical after transfer. Every subfolder and project directory appears in Outlook exactly as organized in your source archive, eliminating the need to rearrange messages post-import. This ensures an uninterrupted workflow and immediate familiarity with your migrated mail.
4. Import Message Files in Just a Few Clicks
Importing messages requires no advanced technical background. Simply select the root directory containing your source files, run the scan, and the software handles the migration automatically. Customer support is available if technical assistance is required.
All you need to do is specify the folder containing your message files, and the software executes the transition smoothly into your chosen destination.
5. Support for Password-Protected Outlook Profiles
Export your data safely even when target Outlook profiles or existing storage files are protected by passwords. The tool processes messages without compromising security or breaking user credentials, maintaining complete privacy throughout the migration.
6. Import Messages from Any EML-Based Email Client
EML is an open format used widely across different desktop platforms. This tool extracts messages from various desktop applications—such as Mozilla Thunderbird, Windows Live Mail, Apple Mail, eM Client, and The Bat!—and consolidates them into Outlook cleanly, enabling smooth batch migration for multi-client environments.
7. Flexible Output: Default Profile or Standalone PST File
Export your correspondence directly into your current Outlook profile or create a brand new, standalone PST file. Standalone PST files can be easily moved to another computer, backed up to external storage, or archived offline.
8. Unicode PST Support & Automatic PST Splitting
The software produces modern Unicode PST files that overcome legacy 2GB size restrictions, handling volumes up to 64TB. For optimal database health and easier file management, the software can also split large PST files into smaller parts during processing.
9. Batch Mode for High-Volume Processing
Migrating thousands of message files is effortless with the built-in bulk processing engine. After scanning your drive, the program moves all selected folders and emails to MS Outlook PST in a single automated session.
10. Intuitive Wizard-Based Interface for Beginners and Pros
The step-by-step wizard ensures that users of any experience level can execute email migrations without confusion, providing clear visual status indicators throughout the run.
Comparison of the trial and full version
| Software Feature | Free Trial License | Home License | Business License | Technical License |
|---|---|---|---|---|
| Unlimited Number of Emails | NO | YES | YES | YES |
| Unlimited Number of Accounts | NO | YES | YES | YES |
| Command Line (Batch Mode) | NO | NO | YES | YES |
| Network Sources | YES | NO | YES | YES |
| Server side use | YES | NO | NO | YES |
| Renewal Type (by choice) | - | Manual | Manual & Auto | Manual & Auto |
| Renewal Discount | - | 10% | 20% | 30% |
| Number of activations (by choice) | - | 1-5 | 1-50 | Unlimited |
| Technical Support | Limited | Standard | Priority | Extended |
EML to Outlook conversion – how it works in 5 simple steps
- Run the EML to Outlook Transfer software.
- Specify the location of your source EML files and folders.
- Click Scan Folder to find all nested subfolders and EML files.
- Use the Save PST button to start the EML to PST conversion process.
- Open the resultant PST file in Outlook and enjoy the result.
Related Email Migration Tools
- Thunderbird to Outlook
- Mbox to Outlook
- Live Mail to Outlook
- Gmail to Outlook
- Mac Mail to Outlook
- MSG to Outlook
- Data Extraction Kit
Frequently Asked Questions about EML to PST conversion
What is the difference between PST and EML?
The PST file format is proprietary developed by Microsoft to store messages, personal data, calendar events and so on. EML represents the Internet Message Format to store email texts and technical data associated with messages. The EML files are text-based. Learn more about what an EML file format is.
What app opens EML files?
Many email clients use EML as a primary way to store emails. Examples of apps that can work with EML are Thunderbird, IncrediMail, Live Mail, Apple Mail (emlx files) and others. A PST converter tool can easily deal with EML files created in any of these clients.
How do I convert EML to Outlook email?
You can try our EML to PST Converter by downloading the demo version from our website. Run the software, specify the folder where your source eml files are located, scan them with the program and start the conversion process. The trial / demo version converts up to 10 emails per folder with no other restrictions. If you’re satisfied with the trial results, you can activate the software to unlock the full features.
Can an EML file be opened in Outlook without the EML to Outlook converter?
Yes. In Outlook 2010, EML files are opened automatically. In earlier versions of MS Outlook you may need to make certain changes in the registry to tell Outlook it should open EML files. However, a simpler and more natural way to open EML files is to just export all of them to a resulting PST file. You can use our EML converter tool for the most effortless way to perform this.
How do I combine EML files to PST file?
If you have multiple EML files, and you want to import all of them to a PST file format, you should either manually import them one by one (boooooring), or take a professional automated importing tool such as EML to Outlook Transfer and finish the job in less than an hour (depends on the amount of EML files of course). The program loads all the EML files in the specified folders and automatically combines them to a single PST file in the batch mode, allows to convert eml to pst format at once.
Is importing EML to Outlook freeware?
You can download and run the EML to PST converter program for free and run the conversion process. The freeware version does not restrict any functions, but has a limit on the amount of converted items.
E If your job involves a lot of eml to pts conversion, or you’re in a situation where you need to convert emails immediately, the EML to Outlook Transfer tool is the perfect solution for you. It ensures that no file is left unreadable and no message is missed or appears unreadable in your inbox after conversion. EML converter effectively solves your migration challenges. Download the trial version today and save yourself a lot of time and effort.
Alternatives to EML to Outlook Transfer:
- MSG Format Conversion to Outlook or Outlook PST files
- Live Mail to Outlook Transfer – convert EML files saved by Win Mail to Outlook
- Data Extraction Kit for Outlook – export emails from Outlook or PST file to EML format
- Mac Mail to Outlook Transfer – import Mac OS EMLX files to Outlook Profile or Outlook PST files
Customer Feedbacks
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Nice piece of software to convert the huge amount of eml files to pst format.
The opportunity to convert .eml to .pst with direct import is valuable, but I was more interested in PST splitting, as I have massive amounts of data (thousands of items) and back everything up. This converter lived up to my expectations.
I saved a bunch of Gmail messages as EML files and moved them to the Outlook profile. This is the optimal choice if you do not want to sync your Gmail to the Windows app. You can import EML files to Outlook at once, so this tool is also a time-saver.
After Windows Live Mail was discontinued, I switched to Outlook but never transferred my old messages. Thank you for coming up with this simple solution. It is really a no-brainer tool to convert EML files to PST.
I wish this converter could also extract emails straight from Thunderbird or at least came with instructions for export. This stage was a hassle, but I was able to convert EML to Outlook without problems. Overall, it works as advertised.
