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Written By Rohan Wiese
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Updated on August 25th, 2025
MBOX File: MBOX is a mailbox storage format used by many email clients like Thunderbird, Apple Mail, Eudora, and Postbox. It stores all the emails of a folder in a single text-based file. For example, your entire inbox is saved inside one MBOX file.
EML File: EML is a single-message format supported by clients like Outlook, Windows Mail, and Thunderbird. Each email, along with its attachments, subject, sender, and receiver details, is stored separately as an .eml file.
Before we move to the methods, it is important to know why users often convert MBOX files into EML format.
Because of these reasons, many individuals and businesses look for ways to convert MBOX files into EML.
Although, the different situations need a different kinds of solutions. Some users prefer free manual tricks. Many of you want a quick professional tool. Here are the best ways to convert MBOX file to EML format based on your needs.
Arsyon MBOX Migrator is simple and the best solution to convert MBOX files into EML format without requiring Thunderbird or any add-ons. Moreover, it supports both single and multiple MBOX files at once. During the process, the tool ensures that every email’s details, such as subject, sender, recipient, date, and attachments are preserved. Apart from EML, it can also convert MBOX to PDF, PST, MSG, and others. Along with that, this utility is compatible with all email clients that use EML as their native format. Additionally, it supports all types of Windows versions and is embedded with a simple and smooth user interface.





This option is suitable if you want to export individual or selected emails into the EML format. It is best for small email selections or when you need only a few EML files.
Thunderbird also has a built-in feature that provides direct export options, along with EML. When you need to perform the export process multiple times, then you can proceed with this method:
If you want a more advanced and streamlined process, especially for bulk conversions, the ImportExportTools NG add-on in Thunderbird is highly effective.
If you already have MBOX files which is imported in Thunderbird, you can use the drag-and-drop method to accomplish the import process:
Throughout this blog, we explored several methods to convert MBOX to EML. The manual options in Thunderbird are useful for task in which you have just a few emails. But they may not be convenient for large-scale conversions. On the other hand, the MBOX Migrator Tool is quick and allows bulk MBOX to EML conversion while keeping every detail of your emails intact, including attachments and formatting. With its simple steps, the tool makes the process smooth for beginners as well as professionals.
Ans: Yes, you can use Mozilla Thunderbird with the ImportExportTools add-on or the drag-and-drop method to accomplish the task without software.
Ans: For manual methods, Thunderbird is necessary. But the Aryson MBOX Migrator Tool does not require Thunderbird is not necessary.
Ans: Yes, automated tool-based methods preserve attachments. Along with that, it ensures 100% accuracy.
Ans: Aryson MBOX Migrator Tool can convert multiple MBOX files to EML at once.
Ans: Manual methods are free but time-consuming. Tools may be paid, but they save time and reduce effort.
About The Author:
Rohan Wiese is a Technical Writer at Aryson Technologies. He is an expert Email Forensic, Cloud Computing, and a passionate nerd with over 10 years of experience in technical content writing. He writes about Cloud Migration, Database Recovery, Email Backup, Windows, Mac, and Tech.
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