How to Import MBOX to Hotmail Account?
Quick Answer: Hotmail does not provide a built-in option to import MBOX files directly. Configure your Hotmail account to Thunderbird, add ImportExportTools NG and then right-click on the Inbox folder and select Import MBOX file. If you want to import MBOX to Hotmail without Thunderbird then you can download and try this utility.
Which Method Should You Use to Import MBOX to Hotmail?
The right method depends on the size of your MBOX file, the number of emails you need to migrate and how much manual work you want to perform.
| Feature | Thunderbird + IMAP | Advik MBOX Converter |
|---|---|---|
| Best for | small or moderately sized MBOX files | Large MBOX files and bulk migration |
| Direct Hotmail Migration | No, uses Thunderbird as an intermediate steps | Yes |
| Import MBOX Files in Bulk | Yes but requires manual steps | Yes |
| Technical knowledge required | Moderate | Basic |
If you have a small MBOX file and prefer a free manual approach, Thunderbird is a practical choice. However, moving a large mailbox or many folders manually can take considerable time. A dedicated MBOX to Hotmail converter is more convenient if you want to transfer the mailbox in bulk.
Can Hotmail Import MBOX File Directly?
No, Hotmail cannot directly import an MBOX file. This means you cannot simply open Hotmail, select an MBOX file from your computer and import all its email. You need an intermediate email application or a migration utility.
One practical workaround is to use Thunderbird. It can import MBOX to Thunderbird local folders and those messages can be copied to a Hotmail account configured in Thunderbird.
Tested: On 4 October 2026, we verified the Thunderbird method using Thunderbird 153 and a 3.2 GB MBOX file to check how effectively emails could be imported and transferred.
Method 1. How to Open MBOX File in Hotmail with Thunderbird?
Thunderbird can be used as a bridge between your MBOX file and Hotmail. First of all add Hotmail to Thunderbird, upload MBOX emails into Thunderbird via ImportExportTools NG and then copy emails into added account.
The basic process is:
MBOX -> Thunderbird Local Folder -> Configured Hotmail account
1. Launch Thunderbird on your system.
2. Click on three horizental line and select New Account.
3. Choose the Email option in the New Account.
4. Enter your Full Name, email address and click Continue in the Account Hub tab.
5. Choose IMAP and click Continue.
6. After the account configuration, Thunderbird will open the Microsoft sign-in screen. In newer Thunderbird version, Microosft OAuth dialogs are displayed externally in the computer’s default web browser rather than inside Thunderbird.
7. Enter your Hotmail email address and click Next.
8. Next, enter your Microsoft account password and complete any security verification requested by Microsoft.
9. Microsoft may display a permissions screen asking you to allow Thunderbird to access your account. Review the requested permissions and click Accept.
10. After successful authentication, Thunderbird will return to the main window, click Finish.
11. Your Hotmail account should now appear in the left-hand folder pane.
12. Now, click on Menu bar and choose the Add-ons and Themes.
13. Install ImportExportTools NG tool in Thunderbird.
14. Next, create a local folder in Thunderbird.
15. Right click on it choose ImportExportTools NG >> Import mbox Files >> Individual mbox Files option.
16. Select the MBOX file that you want to import and click Open.
17. Thunderbird will import the emails into the local folder.
18. Open the imported emails and press Ctrl + A to select all emails.
19. Right-click and choose Copy To >> Your Hotmail account>> Destination Folder.
This is how you can transfer MBOX emails to Hotmail account. It is a free manual solution but it won’t work if Thunderbird Import Export Tools not working.
Method 2. How to Transfer Emails from MBOX to Hotmail Without Thunderbird?
Download and install Advik MBOX Converter to import MBOX to Hotmail in a few simple clicks. This tool is specially designed to instantly import .mbox file into Hotmail account. The tool is free to try and easily gives you a complete solution to move emails from .mbox file into Hotmail. During the MBOX to Hotmail migration process, the software will maintain and preserve email key elements. Hence, no data loss will take place. It offers advanced email filters to import selected emails from MBOX file based on date range, to, from, subject, etc.
Download the software and try it for free.
Steps to Upload MBOX File to Hotmail Account
1. Run this tool on your Windows PC.
2. Click on Select Files or Select Folders to add the .mbox file.
3. Select mailbox folders to import and click Next.
4. Choose Outlook.com as a saving option.
5. Enter your Hotmail email address and click Convert.
6. In the new pop-up Microsoft window, type Hotmail account credentials.
7. It will send a code to your Hotmail account, enter this code and click Sign in.
8. The software will start uploading the .mbox file to the Hotmail account.
After completing the process, you get a pop-up message of completion.
Thereafter, log in to your Hotmail to check all the transferred MBOX files in the actual folder hierarchy.
Completed!! This process is completed now without any errors.
Watch How to Import MBOX to Hotmail Account
Check Your Import After Migration
Regardless of which method you use, do not consider the migration complete immediately after the transfer finishes. Check your Hotmail account to make sure the important data has arrived correctly.
Use the following checklist:
- Compare the number of migrated emails with the original MBOX data.
- Make sure messages from different dates are accessible.
- Open several emails containing attachments and verify that the files are available.
- Confirm that the required folders and their emails have been transferred
- Open messages and verify the sender, recipient, subject, date and message content.
Final Words
Importing MBOX emails to Hotmail is not possible directly, but you can use alternative methods to complete the task. In this guide, we covered two effective methods – using Thunderbird (manual method) and an automated tool (quick & easy solution) to import MBOX to Hotmail. If you have a few emails and don’t mind manual effort, Thunderbird is an option. However, if you want a reliable, accurate, and time-saving solution, an MBOX to Hotmail Converter is the best choice.
Choose the method that suits your needs and start importing your MBOX emails to Hotmail account easily.
FAQs – Upload MBOX Files to Hotmail
Q1. Can I directly open MBOX file in my Hotmail account?
Ans. No, Hotmail does not support MBOX files directly. You need to use an email client or an automated tool to migrate MBOX emails into your Hotmail account.
Q2. How long does MBOX to Hotmail migration take?
Ans. The process depends on the size of your MBOX file. However, the manual methods takes more time as compare to professional solution.
Q3. Will attachments also migrate while importing MBOX to Hotmail?
Ans. Yes. Your MBOX emails are imported along with attachments. Both methods are able to migrate emails with attachments.
Q4. Can I import selective emails from MBOX to Hotmail instead of the entire file?
Ans. Yes, Advik software offers advanced filters that allow you to choose specific emails based on date, subject, sender, or other criteria before importing them.
