Conquering the Conversion: Your Guide to EML to MBOX

Copper Contributor

Have you ever encountered a situation where you needed to transfer your emails from one platform to another, but they were saved in different formats? This can be particularly frustrating when dealing with EML and MBOX files. Fear not, fellow email enthusiasts, for this blog is here to guide you through the conversion process with ease!

Understanding the Jargon:

  • EML: This stands for "Email Message File" and is a common format used to store individual email messages.
  • MBOX: This stands for "Mail BOX" and is a file format used by various email clients to store entire mailboxes, including multiple emails.

Why Convert EML to MBOX?

There are several reasons why you might need to convert EML files to MBOX format:

  • Switching Email Clients: If you're migrating from an email client that saves emails in EML format (like Windows Live Mail) to one that uses MBOX (like Thunderbird), conversion is necessary.
  • Archiving Emails: MBOX format is often preferred for archiving emails due to its ability to store multiple messages in a single file.
  • Legal or Compliance Needs: Some legal or compliance requirements might mandate storing emails in a specific format, such as MBOX.

Choosing Your Conversion Method:

There are two main approaches to converting EML files to MBOX:

  • Manual Methods: These involve utilizing free tools like text editors or email clients with add-ons. While cost-effective, they can be time-consuming and error-prone, especially for large volumes of emails.
  • Automated Converter Software: These dedicated eml to mbox converter software programs offer a more efficient and reliable solution. They typically provide user-friendly interfaces, batch conversion capabilities, and advanced features like maintaining folder structure and email formatting.

Factors to Consider When Choosing a Converter:

  • Ease of Use: Look for a converter with a clear and intuitive interface, even if you're not a tech expert.
  • Batch Conversion: If you have a large number of EML files, choose a converter that can handle them all at once.
  • Supported Features: Consider features like folder structure preservation, attachment handling, and compatibility with various email clients.
  • Security: Ensure the converter uses secure practices to protect your sensitive email data.


  • Always back up your EML files before attempting any conversion.
  • Choose a reliable and reputable converter, especially when dealing with sensitive information.
  • If you're unsure about the process, consider seeking help from a tech-savvy friend or professional.

By following this guide and carefully selecting your eml to mbox conversion method, you can successfully migrate your EML emails to MBOX format and ensure their accessibility and security.

3 Replies
Many users can face the same issue when converting EML files to the MBOX file format. MBOX mailboxes save multiple emails and attachments without any problems. Therefore, it converts EML files into the MBOX file format. I suggest the easy and smart tool called TrustVare EML to MBOX Converter Tool. This application converts single and bulk EML files into the MBOX file format without errors. It supports MBOX files for all email clients, such as Thunderbird, Apple Mail, Poco Mail, Power Mail, etc. This app is compatible with all Windows OS versions.

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I also have a guide to converting EML to MBOX file format. Mailvita EML to MBOX Converter Tool is a simple method to convert one or bulk EML files into MBOX file format. This tool supports all email clients of the MBOX file, such as Thunderbird, Apple Mail, Poco Mail, Eudora, etc. You can convert all email and attachments from Windows Live Mail.eml files to the MBOX Mailbox file format. Any user, technical or non-technical, can easily use this tool. Users can save the whole data of EML files into their local folder. It supports all Mac and Windows OS versions. Free trial versions of the utility.

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I suggest the best way to convert the EML file to MBOX files with try the OSTtoPSTAPP EML to MBOX Converter Tool. This software can quickly save numerous EML files to Thunderbird files. It supports all email clients like Thunderbird, Eudora, Entourage, Opera Mail, Apple Mail, Spice Bird, Evolution, etc. It works with Microsoft Outlook versions like 2021, 2016, 2013, 2007, 2003, and 2000. Download and update this application. Any version of Windows OS can be used with this application. Try the demo version for free.

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