How to Import MBOX to Outlook: 3 Easy Methods (2026 Guide)
Overview: This guide will show you how to import MBOX to Outlook using both manual and professional methods. Further, you will see key changes in Classic and New Outlook. You will also learn how to access MBOX files from Thunderbird and Google Takeout with the help of easy steps. Before importing, you will see all the pointers to cross verify, so that your emails are ready.
Suppose you have an MBOX file that is supported by Thunderbird, Apple Mail, Google Takeout, or other email client. You cannot just open the file in Microsoft Outlook, as these are two different mailbox formats. Thus, you need to transfer the data using our described approaches.
The appropriate method depends on the size of the mailbox and the destination of the emails. If you are dealing with a small mailbox, Thunderbird can be used to export the emails to EML and import them into Classic Outlook. In case you are migrating large MBOX files at the same time, then this conversion is more practical. If you can access your mailbox through an email account, you can choose an IMAP option.
Is there a Way to Import MBOX to Outlook Directly?
No, Outlook does not provide you with native option to open MBOX files. So, the first thing you can do is to convert the MBOX message to Outlook PST format that is compatible with Outlook. These are the options which you can try!
- Conversion to EML: This method is fast and easy, if you want to move a few messages or work manually
- PST Method: It is very useful to convert mailboxes of multiple files and folders
- Using IMAP: You can go with this when your messages are still present in the email account
For large mailboxes, it is best to use our professional solution which you will see in the upcoming section.
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MBOX vs PST: What’s the Difference?
Before you import MBOX to Outlook, let’s understand the important factor which makes it different from each other.
MBOX is a generic file format that comes in multiple variations such as mbx, mbox, mbs files. Depending on the application, MBOX data could be stored either in a file called .mbox or in mailbox files which do not have an extension.
PST stands for Personal Storage Table is your Outlook data file that Microsoft Outlook uses to store emails and other email data. Outlook is able to open and make changes to your PST files. It makes it easy to transfer the data in the MBOX file using the right method. According to Microsoft, PST files contain Outlook information like emails and other items. They are used as Outlook files.
MBOX and Outlook use different mailbox formats, so Outlook cannot directly open an MBOX file. Due to the technical implications of these email formats, users need to convert MBOX to PST file first for accessing their emails in all versions of Outlook.
Try 100% Safe and Fast Way to Import MBOX to Outlook Easily:
Why Can’t Outlook Open MBOX Files Directly?
Since, Outlook does not give the option to open MBOX file types directly. So, you cannot import MBOX to Outlook. For that, convert it into a supported format of your inbox data.
- The MBOX file format is widely used by email clients such as Thunderbird and Apple Mail
- Outlook uses PST and other supported formats to access email and messages
- By, renaming the extension of the .mbox file to .pst file type does not work
- Outlook cannot read the data stored inside MBOX files
- It is a good method to transfer the entire mailbox
- When you are dealing with a limited number of email messages, you can use EML as your file format
New & Effective Methods to Import MBOX to Outlook Manually
Here, we will take advantage of a free email client i.e., Thunderbird as an intermediate to move MBOX files into Outlook PST format. For this, you just have to follow these easy steps:
- Use Mozilla Thunderbird to Import MBOX File
- Convert Emails to EML Format
- Drag and Drop Files into Classic Outlook
- Export Emails to Outlook PST file
Method 1. Export MBOX to Outlook Using Thunderbird Email Client
- First, download and install the Thunderbird application. Configure it with any dummy or valid webmail account.
- Now, go to the Tools menu and click on the Add-on option (Press the Alt key if the menu is hidden).
- Here, search for importexport in the search bar.
- Then, Click on + Add to Thunderbird button corresponding to ImportExportTools NG.
- Here, hit the Install Now button to install this free add-on and restart the Thunderbird application
- Then, select Local folders in the mailbox list and go to Tools > ImportExportTools NG > Import mbox file.
- After that, proceed with the instructions and select the MBOX file(s) to import. You will see the imported MBOX file appearing under the Local Folders mailbox.
2. Export Thunderbird Emails as EML Format
There is no direct way to import MBOX to Outlook account. So, you can use the EML format to complete the conversion.
- Open the imported mailbox file and select all the emails that you want to move to Outlook.
- Then, right-click on them and select the Save As option.
- Specify a location to save your emails as EML files. You will find all your emails in the selected folder.
3. Import EML Files into Classic Outlook
- Create a new folder in Outlook interface. Now drag and drop all the saved EML files into this mailbox folder. All your emails should start appearing once the files are imported.
You will notice that Outlook does not preview some emails. There is nothing you can do about it. The only alternative to this free solution is to open EML files in Outlook by right-clicking on it one at a time and then, use “Move to” to move them to a Outlook folder. And that’s a really really long process.
4. Export the Outlook Folder as PST
If you specifically desire PST files, you can use the native Import/Export feature of Outlook 2019 for this.
- Go to the File menu and select Open & Export > Import/Export.
- Then, select the Export to a file option and hit Next.
- Choose Outlook Data file(.pst) and again hit Next.
- After that, select the mailbox folder in which EML files were imported and hit Next.
- Provide a location to export the emails and click Finish.
- Finally, a PST file will appear at the selected location.
Limitations of Using Thunderbird/EML Steps:
The above methods does allow for small amounts of mailboxes, but is not as effective with larger dataset.
- You should have Thunderbird and Classic Outlook installed on your system
- Emails typically have to go through several stages
- It is hard to import MBOX to Outlook data in bulk
- Users have to put in the extra effort to keep the folder structure intact
- This is not suitable to migrate several MBOX files of significant size
Method 2. Import MBOX to Outlook Using an IMAP Account
This is the method which you can follow to transfer messages from the source app to Outlook. It lets you read the same emails no matter which device you are using.
1. Firstly, open Thunderbird or Apple Mail and import the MBOX file into your email account
2. Next, add an IMAP-enabled account containing MBOX data
3. Move required information from the local mailbox to the IMAP folder
4. Give some time to let the account upload and sync all your messages
5. At this point, open Outlook and log into the same IMAP account again
6. Once Outlook completes the syncing of the account, you can check your important folders and messages
Limitations:
- Users should have an active email account
- Also have sufficient storage from a server
- Having large mailboxes might take time to upload
- You must have a stable internet connection
- Folder mapping can be different which depends upon providers
This method is not considered the best for huge MBOX archives. Use our professional solution to avoid all these problems without any manual effort.
Reliable & Automated Way to Import MBOX to Outlook
The manual method is quite a time-consuming and lengthy process for exporting MBOX files into Outlook. It could be a good approach, if the user has to perform this conversion on less number of emails. Furthermore, users require to have technical knowledge of Thunderbird and Microsoft Outlook to succeed in this method.
Therefore, in order to avoid the drawbacks of the manual method, it is better to go with our professional solution. Such tools like MBOX to PST Converter offer a varied set of features that makes the conversion process easier for users. Moreover, It allows users to select particular emails/files to convert into Outlook PST format. As a matter of choice, you can even filter out emails based on a date range.
The demo version allows to convert 25 emails per folder to Outlook PST for free and preview all the emails along with attachments.
Steps to Export MBOX to Outlook Using This Tool
- Step 1: Launch the software and click “Add Files” to start the import MBOX to Outlook process.
- Step 2: Click “Next” and Import MBOX files into it.
- Step 3: “Preview” all the Emails and Attachments once the MBOX emails get scanned.
- Step 4: Set the Export type to “PST” and save the file at the desired location.
- Step 5: Import the PST file into Outlook with the free native option.
Import the Converted PST into Classic Outlook – Free Steps
After converting your MBOX into a Outlook PST file, the next step is to add it into Classic Outlook. For that, you can use the option available from the Import/Export feature.
1. Open Classic Outlook on your system
2. Navigate to File > Open & Export > Import/Export
3. Select the option Import from another program or file and press Next
4. Choose Outlook Data File (.pst) and hit on Next button
5. Browse and open the saved PST file on your system
6. Go with your preferred option for duplicate emails and click on Next
7. Select the folders you wish to import along with the Outlook mailbox to which they need to be imported
8. Lastly, press Finish and wait for the Outlook to finish the export process.
Quick Ways to Export PST into New Outlook
In New Outlook, users can import PST files via Data files settings. This means you can export your emails and other relevant information from the converted PST file to your Inbox.
- Open the updated version of New Outlook on your device
- Press the Settings icon and enter Accounts >Data files
- Select Import and then click on Outlook Data File (.pst)
- Look for your PST file which you need to import from your local drive
- Now, select the folders you want to import to Outlook
- Choose the desired folder to import your data
- Just wait for the process to complete
After the import is finished, access the folders selected for importing and check the emails, attachments, and folder structure.
New Outlook vs Classic Outlook – Key Differences
Users should know the below factors after they complete the process to import MBOX to Outlook.
Classic Outlook: Users can import a PST file using the traditional Import/Export wizard or open the PST as an Outlook Data File.
New Outlook: Through the new Outlook settings > data files > import feature, PST files can be imported into the mailbox. You can also open PST files using the new Outlook, but the latest version of it works differently with PST files.
You have to keep in mind that features of Outlook get updated. It is essential for the user to follow the respective version of Outlook installed on their computer. If the MBOX archive is large, it is critical to convert the source MBOX files to PST format first. After that, the PST files are imported into Outlook.
Things to Consider Before Exporting MBOX to Outlook
Before you import MBOX to Outlook, verify all these points to ensure smooth conversion and avoid any type of errors.
- Make a copy of the original MBOX file
- Look at the size of the MBOX
- Confirm that you are able to open in your respective application
- You should know whether you have single or multiple MBOX files
- Ensure that there is enough disk space available
- Follow the above methods according to your work
- Check if the user is running new versions of Outlook or Classic ones
- If the data are in large size, you can migrate in parts or just use the dedicated software
Conclusion
When you need to import MBOX to Outlook, you will require an additional step because Outlook cannot open MBOX files directly. If you want to transfer only a limited number of emails, you could simply use Thunderbird or EML files methods. Another option is using IMAP, if you still have access to an email account for syncing your emails with Outlook.
If you need to import a lot of emails or multiple MBOX files at the same time, then using our professional solution will be a better alternative. As it will help to keep all your emails, folders and attachments intact. Before importing, ensure to back up the original MBOX file and verify your Outlook version. After the data is converted, open a few folders and messages to check for attachments, dates, sender information, and folder organization. Choose the method depending on the size of your mailbox and migrate efficiently.
Here, we have also provided information about an automated MBOX Extractor that quickly generates a PST file and import them into Outlook versions. It’s equally important that you try the free trial version before deciding on anything!
Frequently Asked Questions – FAQs
1. Is there any manual way to import MBOX to Outlook for Free?
Ans. Yes, there are free methods to export MBOX to Outlook. We have explained all of these in the above article.
2. Are the given solutions applicable to all Outlook versions?
Ans. The steps that are available will depend on the version of Outlook you use. The article discusses the relevant steps for both Classic Outlook and New Outlook. Older versions may include different options in their menus and methods for import.
3. Can I get a method that can convert emails without using Outlook where I cannot install any software?
Ans. Yes, of course. It is possible to convert your mailbox without the MS Outlook platform. After using the professional solution to get the resultant PST file, simply move the file to the system having MS Outlook.
4. Although I also want MBOX files in Outlook compatible format, I actually require MSG files. What method should I use?
The automated smart solution has your answer. Other than PST, it also allows you to convert MBOX to EML, MBOX to MSG, HTML, PDF, EML, and NSF formats.
5. Will I be able to export MBOX to Outlook on Mac OS?
Ans. The proposed free solutions are applicable for Windows PC only. However, you can use Mac MBOX Converter software to get the job done. You can use the demo version for free.