How to Convert EMLX to MBOX File Format? Simple Guide

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  • Updated on September 19th, 2025

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John used to use Apple Mail for his emails, but now he’s switched to Thunderbird. He has many essential emails saved in Apple Mail in a format called EMLX. To ensure everything works smoothly and he can still see his old emails in Thunderbird, John needs to convert EMLX to MBOX. Moreover, he wants to perform the conversion process most simply but doesn’t know how.

We know the EMLX file format is widely and foremost supported by Apple Mail. However, many want to convert it into MBOX format due to a smaller number of Mac users. Now, many of you seek a format that could be accessible on Windows and Mac. However, you might be wondering why people only use MBOX. Let us find out the reason behind it.

Also Read: Import EMLX Files into Gmail Account

EMLX File vs MBOX File

The following section will discuss the difference between EMLX and MBOX formats. As a result, users will get help to know better how to perform the EMLX to MBOX conversion process.

Basis EMLX File MBOX File
Type Individual Email Message Files Concatenated Email Storage Format
Used By Apple Mail Multiple Email Clients and Servers
File Extension .emlx .mbox
Message Storage Each File Contains a Single Email Message All Messages Stored in a Single File
Attachments Included within individual EMLX Files Included within the MBOX File

Here, you’ve seen that we have gone through the differences in a tabular form. Now, we will perform a reliable way to Change EMLX into MBOX.

Professional Method for Converting EMLX to MBOX with Attachments

There is no direct method to perform the EMLX to MBOX conversion process easily. In addition, when you accomplish the manual conversion, it consumes a long time. Moreover, there is a high chance of data. As a result, we prefer you to go with the reliable approach. The following section will discuss the same.

Cigati EMLX Converter is an efficient and all-in-one software. It allows users to convert EMLX to MBOX with Attachments without data loss. Moreover, you can effortlessly perform the bulk conversion while securing 100% data integrity. In short, it enables you to process multiple EMLX files simultaneously. Now, we will accomplish the work of this utility to clear all your doubts.

Steps to Convert EMLX File to MBOX

  • First, download and launch the EMLX Converter. After that, run it as an administrator.
  • Then, add single or multiple EMLX files and click the Next button.
  • Next, choose the files or folder from the tree structure you want to convert.
  • Further, select the saving format as MBOX from the list of choices.
  • Use the advanced features of the tool in accordance. Now, set the destination path by clicking on the Path to Save option.
  • At last, click the Convert button, and your added EMLX files will change to MBOX.

Here, we accomplished the direct procedure to Convert EMLX to MBOX. Moreover, this software contains some additional features that every user should know.

Advanced Features of EMLX to MBOX Converter Tool

  • You can choose specific EMLX files or folders for conversion.
  • Before initiating the conversion process, the tool provides a preview of the selected EMLX files.
  • The software is designed with a user-friendly interface that makes it easy to navigate and use, even for users with limited technical expertise.
  • This Converter maintains the integrity of your email data during the conversion process.
  • Allows to perform the conversion in a particular date range.

Concluding Words

In simple terms, converting EMLX to MBOX is necessary when people switch between email apps or want to keep their emails safe. It makes sure their emails can work well on different email platforms. So, if someone has significant emails and wants to use them on a new email app, you can convert EMLX to MBOX to run smoothly. This way, people can access their emails easily, no matter which email app they use.

You May Also Read: Convert EMLX to PST

Frequently Asked Questions

Q: What is the difference between EMLX and MBOX formats?

Ans: EMLX is Apple’s proprietary format used by Apple Mail to store individual email messages. Each email is saved as a separate EMLX file. MBOX, on the other hand, is a standard email storage format where multiple emails are stored in a single file, making it easier to manage and transfer emails between different email clients.

Q: Why would I need to convert EMLX to MBOX?

Ans: Converting EMLX to MBOX is useful when migrating from Apple Mail to other email clients like Thunderbird, Eudora, or SeaMonkey, which support the MBOX format. MBOX files are also more suitable for archiving emails in bulk.

Q: Is it possible to convert EMLX to MBOX without using Apple Mail?

Ans: Yes, third-party software like Cigati EMLX to MBOX Converter can convert EMLX files to MBOX without requiring Apple Mail.

Q: How can I convert EMLX files to MBOX manually?

Ans: You can manually convert EMLX to MBOX using Apple Mail:

  1. Close Apple Mail if it’s open.
  2. Navigate to ~/Library/Mail/Mailboxes and create a new folder with the .mbox extension.
  3. Inside this folder, create a subfolder named Messages.
  4. Move your EMLX files into the Messages folder.
  5. Reopen Apple Mail and locate the .mbox folder.
  6. Right-click the folder and select Export Mailbox to save it as an MBOX file.

This method is effective for small numbers of emails but can be cumbersome for large volumes.

About The Author:

Rohit Singh is an Email Backup, Recovery & Migration Consultant and is associated with Software Company from the last 3 years. He writes technical updates and their features related to MS Outlook, Exchange Server, Office 365, and many other Email Clients & Servers.

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