How to Convert EML to MBOX File Format in Bulk?

Quick Steps to Convert EML Files to MBOX

1. Download and run CloudXena EML Converter Tool.
2. Then, add your EML file and click Next.
3. After that, open the folder structure, select files to convert, and click Next.
4. Choose the MBOX file format and use the filters (if required).
5. Finally, set the destination Path and click Convert.

Why Conversion of EML to MBOX Required?

The operations mentioned below make it easier to manage, transfer, or back up all emails together:

• EML files store each email separately, while MBOX stores all emails in a single file.
• Many modern email clients like Mozilla Thunderbird, Apple Mail, SeaMonkey, Postbox, and Eudora support the MBOX format.
• When moving from an EML-based email client (like Windows Live Mail or Outlook Express) to an MBOX-based client (like Thunderbird or Mac Mail).
• MBOX combines all EML files into one container, as it’s inconvenient to open multiple EML files one by one.
• Investigators or auditors often need to analyze large volumes of emails.
• Some webmail platforms (like Gmail, Zoho Mail) allow importing data through MBOX files.

Manual Methods to Convert EML to MBOX

There are two manual methods to perform this export. Both methods are divided into multiple steps to reduce their complexity. However, these methods are too lengthy and need technical knowledge. You may face multiple errors during the process.

Method 1: Export EML Files into MBOX Using Thunderbird

In this method, we are going to use Mozilla Thunderbird and use its ImportExportTools NG add-on. Follow the steps below carefully to avoid errors:

Step 1: Import EML Files into Thunderbird

1. Firstly, install Mozilla Thunderbird and set up your email account.
2. Then, in the left panel, right-click on Local Folders and select New Folder, and give it a name.
3. After that, drag and drop all your .eml files into this newly created folder.
4. Thunderbird will now automatically import and display your EML emails.

Step 2: Export EML Files as an MBOX File

1. Thereafter, go to the menu (≡) and select Add-ons and Themes.
2. Then, search for ImportExportTools NG and click Add to Thunderbird.
3. Afterwards, right-click on the folder containing your imported emails.
4. Choose ImportExportTools NG -> Export folder -> As MBOX file.
5. Finally, select a location on your system to save the file.

Method 2: Export EML File to MBOX Using Apple Mail

Here, we are combining multiple EML files into a single MBOX file by using Apple Mail. Apple Mail naturally supports the import of individual .eml files and export in .mbox format.

Step 1: Create a New Mailbox in Apple Mail

1. To begin with, launch Apple Mail on your Mac.
2. Then, go to the Mailbox menu and click New Mailbox.
3. Under Location, choose On My Mac, and then name your new mailbox.

Step 2: Import EML Files into Apple Mail

1. Thereafter, open Finder and locate the EML files you want to convert.
2. Furthermore, double-click or right-click and open them with Apple Mail.
3. In the Apple Mail window, move these emails to the newly created mailbox (or any existing one) under On My Mac.

Step 3: Export Mailbox as MBOX

1. Afterwards, right-click the mailbox that now contains your imported emails.
2. Then, choose Export Mailbox from the context menu.
3. Finally, select the desired location to save the exported mailbox.

Limitations:

• These methods are time-consuming and lengthy.
• There is are very high risk of errors.
• It requires repetition for each folder.

Quick and Secure Way to Convert EML to MBOX

The CloudXena EML Converter is a highly secure and reliable solution to export your EML files into MBOX format without compromising data integrity. It ensures complete folder structure preservation, keeping your emails organized exactly as in the original mailbox. The tool also maintains email formatting, attachments, metadata, and headers throughout the conversion process. Moreover, it is efficient to convert EML file to CSV, PDF, MSG, DOC, DOCX, and so on.

Note that this excellent tool addresses the following “User Concerns”:

• When dealing with large volumes of EML files, the emails may get lost or corrupted.
• The original folder hierarchy might be lost during migration.
• Data leakage during the migration process.
• Converting multiple EML files may create duplicate emails if not handled properly.

Steps to Convert EML Files to MBOX:

1. Install and run the EML Converter Tool.
2. Then, select and add your EML file/folder and click Next.
3. After that, open the folder tree structure, select files to convert, and click Next.
4. Choose the MBOX file format and use the required filters.
5. Finally, set the Path to save and click Convert.

Conclusion

In this blog, we discussed multiple solutions to convert EML to MBOX, such as manual methods and advanced tools. If you have a larger file and want a quick solution, go with the automated tool. Manual methods are time-consuming, lengthy, and prone to errors. Also, we saw a real-life user case on how this tool works. For more queries, you can contact with Cloudxena tech support team.

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