How to Import MBOX to Outlook 2021, 2019 & 2016

With the new updated Outlook 2021, you may want to switch to Outlook 2021. That’s great. But how to import MBOX to Outlook 2021? Fortunately, this article lists the 2 best methods to import MBOX to Outlook 2021, 2019, 2016 and other earlier versions. Take a look and you will find the effective approaches to accomplish this task.

“I’m really attracted by the new features of Outlook 2021 and decided to switch to Outlook 2021. I’ve been using Thunderbird for 3 years. Now I don’t know how to import MBOX to Outlook. Can anyone suggest a simple one and convenient guide to help me out of this problem”.

Similar to Outlook 2019 before it, Outlook 2021 is a one-time purchase available to users. In fact, transferring data from MBOX files to Microsoft Outlook 2021 has become a problem since the release of Outlook 2021. To help users, we will explain two easy and convenient ways to import MBOX to Outlook 2021 including all folders and subfolders.

Manual Way to Import MBOX to Outlook 2021, 2019 & 2016;

There is a manual solution to do this task via Thunderbird. However, this method is not recommended as it is a time-consuming and complex way to import MBOX to Outlook 2021, 2019 and 2016. However, since users are also looking for manual solutions, we decided to present this method as well.

Follow the steps below to import MBOX to Outlook 2021 manually. We will go through 4 main steps as we used Thunderbird as an intermediary to transfer MBOX data. Also, we need to transfer emails from Thunderbird to Outlook 2021 email client application.

Step 1. Import MBOX file into Thunderbird

1. First, click Local Folders and proceed to the next step.

2. Now click Tools>>ImportExportTools NG>>Import MBOX file in the menu bar.

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3. Select the import way from the various options and click OK.

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4. Now browse and select MBOX files from your system.

5. You have successfully imported the MBOX file to Thunderbird local folders.

Step 2. Export MBOX files to EML format using Add-On

1. Restart Thunderbird and select desired mailbox folders of MBOX files.

2. Right click on the selected folders and select “ImportExportTools”>>Export all messages in the folder>>EML format.

Import MBOX to Outlook 2021

3. Now select a location where you want to save converted EML files and tap “Select Folder”.

open mbox file in Outlook 2021

Step 3. Drag and Drop EML files into Outlook 2021

1. Now open Outlook 2021 in your system and run it.

2. Create a new folder in the Outlook mailbox and name it “New Folder”.

3. Now drag and drop all EML files which consists of data from MBOX files to Outlook 2021.

Repeat the same process for all EML files that are converted from MBOX files.

After following the above steps correctly, you will get all data from MBOX files in Outlook 2021.

Read Also: How to Import MBOX to GoDaddy Webmail with attachments?

Why Shouldn’t you rely on Manual Solutions?

But as we have said before, importing MBOX to Outlook 2021 is not an easy step. Users need to go through the following limitations when using this method to open and access MBOX files in Outlook.

  • Lengthy and complex process.
  • Requires advanced technical knowledge.
  • Due to the possibility of data loss, we cannot fully rely on this process.

Professional Way to Import MBOX Files to Outlook

Advik MBOX to PST Converter is an effective and efficient solution to easily import MBOX to Outlook. The software is designed solely to carry out the MBOX to PST conversion process as Outlook can import PST files easily.

Hence, MBOX to PST conversion is the most effective way to accomplish this task. Moreover, besides PST format, it also converts MBOX to PDF, MSG, EML, PST, HTML, DOC, CSV, ICS and imports MBOX to Gmail, AOL, Hotmail,, Yahoo and many other email services .

Step-By-Step Guide to Export MBOX Emails into Outlook 2021;

1. Install and run MBOX to PST Converter utlity on your PC/Computer.

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2. Click “Select Files or Select Folders” to upload a single MBOX file or multiple MBOX files to the software control panel.

Import MBOX to Outlook 2021

3. This tool will now preview the mailbox folders of the MBOX file. You must select the folder of your choice to import.

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4. Select “PST” as a saving option from the list of multiple save options.

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5. Finally, click the “Convert” button to start the MBOX to PST conversion process.

Import MBOX to Outlook 2021

Steps to Import PST file to Outlook 2021;

1. Navigate to the File tab.

open mbox file in Outlook 2021,

2. Click >>Open & Export>>Import/Export.

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3. In the Import and Export Wizard, select Import from another program or file and then click “Next”.

Import MBOX to Outlook 2021

4. Select Outlook Data File(.pst) from the drop-down menu.

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5. Now, click browse and choose “PST” file you want to Import click “Next”.

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6. Select the folder you want to import and also include subfolders and click “Finish” button.

Import MBOX to Outlook 2021


Through this blog, users can easily learn both the manual and professional methods to import MBOX to Outlook 2021. Both methods are simple and easy to use, but manual solutions also come with some limitations that can cause delays in the importing process. Hence, it is recommended to use professional solutions to overcome these challenges and successfully complete the MBOX email conversion process.

1 Comment
  1. Try ZOOK MBOX to PST Converter to batch convert MBOX to PST format to access the entire mailbox data in Outlook. It is the safe solution to export MBOX to PST format for Mac Mail/Apple Mail, Mozilla Thunderbird, Eudora, Entourage, and many more MBOX based email clients.
    Most importantly, it is a portable tool which can be easily moved to any system and can be smoothly worked on any Windows version. It supports all Windows version i.e. Windows 10, 8, 8.1, 7, and all below versions. All the entire data of MBOX file will remains same in same folders and sub-folders to maintain the entire folder hierarchy.
    It also offers the trial version where user can check the capability of the tool and convert their 25 emails from MBOX to PST format.

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