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Creative Methods to Upload MBOX Files to Outlook

While new and revolutionary ideas generate new technologies every day, the technological world is changing. These ideas are something that exists in almost all fields, including email migration. In this article, we will introduce you to some ideas that will allow you to upload MBOX to Outlook for free. All you have to do is implement these creative alternative solutions manually and access those MBOX files in Microsoft Outlook. For user convenience, we will also mention an automatic solution in the end to give you some quality options.

Free Creative Methods to Upload MBOX to Outlook

Although experts always recommend using third-party utilities in 90% of email migration scenarios, this isn’t the only way. People tend to study these problems and try to find ways to solve them for free. The same goes for importing MBOX files to Outlook. Although there is no direct method, there are some creative solutions for converting MBOX files to PST for free. We tried some methods and listed the one that was most effective. We also searched for a number of third-party solutions and included the one that provides the best results.

Listed Methods:

  • Configure via IMAP
  • Automation software solutions

IMAP synchronization technology

Almost all users who try to upload MBOX to Outlook first consider migrating all emails through IMAP. Yes, it will take some time, but it’s absolutely free. However, you will require one application that supports MBOX and MS Outlook programs.

For reasons of understanding, let’s say that the MBOX file is of the Thunderbird program and we use it to show the steps:

  1. First, create a new Gmail account and enable two-way authentication in it.
  2. Then, import MBOX into Thunderbird (if it is not already included in its database). Note: The ImportExportTools add-on is required for this.
  3. The next step is to set up a Gmail account in Thunderbird using IMAP.
  4. Copy all MBOX data to a new folder in the Gmail inbox section.
  5. Log in to your Gmail account on any web browser to verify that the copied files are synchronized.
  6. When finished, exit Thunderbird.
  7. Now start MS Outlook and use IMAP to set up the same Gmail account.
  8. Download/move all previously copied content from the Gmail folder to Outlook (if necessary, create a new folder).
  9. Finally, check if all the emails exist. This concludes the process.
  10. If necessary, you can use Outlook’s “Import / Export” option to save these emails to a PST file.

As you can see, there are three requirements in this case: MBOX client (Thunderbird), MS Outlook client, and Webmail account (Gmail). The whole process is free.

Important note: If you want to use the same folder structure, you must manually create each folder and populate it with the required emails. If you want information on the original title, sorry, you won’t be able to get it with this method. And, if you have a large number of emails (tens of thousands), the process will take a long time. So get ready for this. Of course, if you have no problems with this, then I don’t see a reason not to implement the technology.

I guess when they say that FREE always has hidden costs, they have to mention these two situations. But you can’t deny the fact that they can do their job for free. After actually implementing these technologies, I didn’t know why people were actually looking for professional tools. If they work for you, congratulations. If not, take the time to switch to an automated freeware/shareware solution.

Upload MBOX to Outlook with Automated Solution

By automated software, we meant third-party solutions that are available as freeware and provide automated conversion. The advantage of this software is that you only have to pay a cent to take them to a test to see what it really does.

MBOX to PST Converter application is actually an intuitive application that can batch convert MBOX to PST in minutes. It claims to support MBOX files for over 20 email applications. We tested Thunderbird MBOX, Eudora MBOX, Apple Mail MBOX, and Gmail MBOX. And it works perfectly every time without changing anything.

The auto-fetch feature allows automatic detection of the entire database of multiple email applications, including Thunderbird. This means that there is no need to manually add MBOX files. However, if you want to do it, there are two good options. Enter file mode or select folder mode based on your selection requirements.

After generating the PST file and uploading it into Outlook, the folder structure and header section are exactly the same. The MBOX to Outlook uploading process was quick and there was no form of data loss. All in all, this software comes with a good quality-price ratio.


It is not practical to upload MBOX to Outlook for free, but it is completely achievable. After trying many free manual methods and software solutions, we decided on this article. Of course, opinions can differ but right now, these two solutions seem to be the best available. You can try the free method or import MBOX files to Outlook with software, it’s up to you.

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