How to Convert MBOX to EMLX With the Attachment Securely?

  

Rollins Duke   
Published: October 22nd, 2025 • 6 Min Read

MBOX to EMLX conversion is usually done when users want to access their email data in Apple Mail. MBOX is a very common and popular file format used by many email clients to store or save a message collection in one file. The EMLX is the original file format used by Apple Mail for saving individual email messages separately. You can manage your emails properly within Apple Mail by converting MBOX to EMLX. Are you looking for a solution to convert MBOX to EMLX? Then this is the correct blog for you.

About EMLX

EMLX is a file format used by Apple Mail for storing or saving email messages. Every EMLX file contains a single email message, including attachments and metadata. Unlike MBOX that contains multiple emails in a single file, EMLX saves every email separately which helps in making it easy to manage and backup.

Manual Methods to Convert MBOX to EMLX

There are 2 manual methods provided below that you can use to convert MBOX to EMLX:

Method 1: Using the “Save As” Feature of Thunderbird

1. Run Mozilla Thunderbird on your device.
2. Create a Thunderbird account and then open the mailbox folder.
3. Now, select or choose the emails that you want to convert.
4. Then, right-click on the emails that you wish to save and choose the “Save As” option.
5. Now, you can choose the folder where you want to save your emails.
6. Now, click on the Save button, and the process to convert MBOX to EMLX will be completed.

Method 2: Convert MBOX to EMLX Using Apple Mail

1. Run Apple Mail on your MacOS device.
2. Move to the File Menu and select the option to Import Mailboxes.
3. Now, from the Import options, choose the Files in MBOX Format.
4. Then, browse and choose the MBOX file you want to convert.
5. Now, simply select the Continue option to convert MBOX to EMLX.
6. The MBOX files, which were imported, will be seen or visible in a new mailbox folder in Apple Mail.
7. Now, you can open, view, and access all the emails within Apple Mail.
8. Then, to get the converted emails in the EMLX format, move to the following location on your Mac device: /Library/Mail/.
9. Lastly, inside this directory, each email is stored in .emlx format by Apple Mail.

Note: Apple Mail supports EML files, but with the following limitations. You have to open and view EML files in Apple Mail by double-clicking them. You can drag and drop the EML files in the Apple Mail folder to import them, but Apple Mail does not originally export email in EML format. It saves or stores messages in EMLX format.

Drawbacks of Manual Methods

• Manual ways to convert MBOX to EMLX consume a lot of time and effort.
• During the import process, there is a chance that some emails do not export properly. Therefore, there are chances of data loss and corruption if you do the conversion process using manual methods.
• There is a chance that you may require technical knowledge to convert MBOX to EMLX manually.
• You cannot batch export, and the manual way is prone to a lot of errors.
• Manual ways are not considered beginner-friendly.

Steps to Export MBOX to EMLX Format Using Pro Tool

1.  Start the MBOX to EMLX Converter and load mailbox files in the software panel using the Select Files or Select Folders option.
   
2. Now select mailbox files from the software interface and press the Next button to continue.
   
3. Choose EMLX as a saving format that is compatible with Apple Mail client.
   
4. Select file naming conversion intent according to your need for storing the converted .emlx files in different professional styles.
   
5. Select the destination path for storing the converted EMLX files and click on the Next button.
   
6. MBOX files to EMLX conversion process is running and showing a live conversion progressive report.
   
7. MBOX to EMLX migration process is completed successfully, now click on the Ok button.
   
8. Now it will automatically open the desired destination path so that users can get their converted EMLX files. The tool also creates a log report too.
   

Conclusion

The above mentioned MBOX to EML Converter is a very suitable software if you want to convert MBOX to EMLX extension securely. The tool offers the fastest conversion speed and supports the migration of multiple MBOX files to EMLX format at the same time. The MBOX to EMLX Converter tool is developed by a reliable software company. It also provides free demo version to users to check the efficiency of the tool.