How to Extract Attachments from MBOX Files (Complete Guide)

What is an MBOX File?

MBOX is a mailbox file format that consists all email messages in a single file. It is supported by many popular email clients such as Mozilla Thunderbird, Apple Mail and various Linux based email applications. As, it is a single text based mailbox file, each message contains email headers, message content, embedded images, MIME encoded attachments, metadata etc. The whole structure of MBOX file is simple and understandable but large MBOX file often create issues. Because not only emails make it large but it’s the attachments that remains in your emails for lasts and increase your mailbox size.

So, it’s important to extract attachments from it.

As, we have discussed already that attachments can also increase the size of your mailbox. And it makes it difficult to search, open a mailbox containing multiple emails. Extracting MBOX email attachments help you to manage your mailbox easily and make a way to make you understand.

How to Export Attachments from MBOX File? (Manual Trick)

As, we have discussed already that attachments can also increase the size of your mailbox. And it makes it difficult to search, open a mailbox containing multiple emails. Extracting MBOX email attachments help you to manage your mailbox easily and make a way to make you understand.

If you can access your MBOX file in Thunderbird, then you can try to export attachments from the MBOX file using Thunderbird. Before starting the process, make sure to install ImportExportTools NG add-on.

Note: Useful only if you have small mailbox or need a few attachments.

1. Download and install Thunderbird on your Windows computer.
2. Open Thunderbird and click gear icon and choose Add-ons and Themes located at bottom.
3. Now look for ImportExportTools NG in the search bar.
4. Then install the add-on and restart your Thunderbird application.                                   
5. Again open Thunderbird app and look for local folder in left pane.
6. Right-click Local Folders ImportExportTools NG >> Import MBOX Files.
7. Browse and select your mailbox file and click the OK tab.           
8. After importing, the mailbox will appear as a separate folder.
9. Now, open the email from which you need to extract attachments.
10. Right-click on that attachment and choose Save As.
11. Select the destination folder and save the file on your system.

Now, repeat the same process for your remaining attachments.

Major Problems with the Manual Extraction Process

The above manual method works well for small mailboxes but it has several unavoidable limitations that must be consider before choosing this method.

• Thunderbird Performance Issues: During testing of this manual method, we tried importing 6GB of MBOX file into Mozilla Thunderbird and it took several minutes to load. And also it temporarily increase RAM usage.
• Large MBOX Files: If you are using large MBOX files for this extraction process then you may face issues like slow folder loading, Freezing of Thunderbird and many more.
• Time-Consuming: If these issues occurs while using this method then it’s most pronable thatit will take huge time for you.
• Risk of Losing Attachments: If your MBOX file becomes corrupted due to any reasons then some attachments may not appear correctly.

How to Get MBOX Email Attachments Automatically?

If you are looking for an easy way to extract all attachments from MBOX file trying using a professional tool. As we have seen that manual methods requires to open each email one by one, which is time-consuming and not suitable for large MBOX files. Advik MBOX Converter helps you download all attachments in one attempt without any much efforts. You just need to load your MBOX file, choose the folders and start the process.

The software will scan all emails and save attachments like PDF file, images, any documents and other files into a separate folder. It keeps the original file names and does not make any changes to your data.

Click on the download button to understand how it works;

Follow the steps to extract all attachments from MBOX file at once

Step 1. Install and run the software on your Windows PC.

Step 2. Click on the Select File or Select Folder option to ADD your MBOX files.

Step 3. Select the required folders from which you want to extract attachments.

Step 4. From the saving options, choose DOC option from the list of options.

Step 5. Select the destination path where you want to save the attachments.

Step 6. Click on the Convert button to start the process.

The software will automatically scan all emails and extract attachments from MBOX files that you have choosed in above steps.

Once the process is completed, open the destination folder to open and access all your attachments.

MBOX file stores it attachments within the email structure using MIME encoding. During extraction process the tool decodes these attachments and saves them separately without any modification to the source file.

Which Method Should You Choose?

The method you will choose is toally depends on your needs and file size. If you have only a few emails in your MBOX file and you don’t have much time to spend then you must go with the manual method using Thunderbird. But don’t forget that it requires complex setup and you need to extract attachments one by one which can be slow.

On the other hand, if you have a large MBOX file, multiple files or want quick results without effort, then using a professional solution is a better choice.

Final Say

At last, we will only say that extracting email attachments from MBOX file is not such a difficult task. It can be simple or difficult depends on the method you choose. Manual methods are useful for small tasks but become time-consuming for large email data. If you want a safe and easy process then we must recommend you to choose a professional tool. It helps you extract all attachments in just a few clicks without losing any data or structure.