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Top Methods to Export Outlook Emails to Thunderbird

Jaspreet Singh Devgan | Modified: 2021-11-15T12:30:54+00:00|Data Migration, Outlook | 5 Minutes Reading

Is “export Outlook emails to Thunderbird” your main query these days? Are you looking for feasible methods to move emails from Outlook to Thunderbird? Stay tuned, as we are going to discuss solutions to this much sought-after query “how to export PST to MBOX” in this blog.

MS Outlook and Thunderbird both are desktop-based email clients. The main difference between these two is cost. While Outlook is a subscription-based application, Thunderbird is completely free of cost. Various reasons may lead to the need for exporting Outlook emails into Thunderbird. But the big question follows immediately: “How?”

If you are searching for the best way to transfer Outlook email data into Thunderbird account, this is the right place. This blog is designed to tell the readers some reliable and proven techniques of Outlook 2016 email export in Thunderbird.

Why Export Emails from Outlook to Thunderbird: Top Reasons

a. Organizational Obligations

Employees need to use the email account as per the company rules. If an organization switches to Thunderbird from Outlook, its complete set of employees also starts using Thunderbird. After the migration, they also need to export Outlook emails to Thunderbird.

b. Cost Free Email Application

As we have mentioned earlier, Outlook email requires users to pay a regular subscription. On the other hand, Thunderbird is a free email client. To cut the cost, many people switch from Outlook to Thunderbird.

c. Access Outlook Emails without MS Outlook

Often, people need to open Outlook email data straight from the orphan PST file without having an Outlook email client installed on the computer. Thunderbird email is a possible option for them to open the emails without Outlook for free. For this reason, users need to transfer emails from Outlook to Thunderbird with attachments.

Read More- Import Outlook Calendar to Thunderbird

Different Methods to Export Outlook Emails to Thunderbird

There are various ways to move email data from Outlook to Thunderbird. In this write, we will focus on only two methods that have already been proven fruitful.

A. Move Outlook Emails to Thunderbird using Google Takeout

Google Takeout is a popular method to extract Gmail data in MBOX format. If you configure your Outlook account in your Gmail account, you can use this service to transfer Outlook data in Thunderbird.

Remember: The configuration of the Outlook account must be done with the IMAP profile. Otherwise, this manual method will not work.

1. Open your Gmail account & access Google Takeout.

2. Click on Create Archive and choose the email mailbox of configured Outlook.

3. Choose to Send download link via email as the delivery method.

4. After some time, you will get an email containing a link. Download a zip file from the link and extract it. You will have the Outlook data saved in the MBOX file.

5. Open Thunderbird and install the ImportExportTools NG add-on in it.

6. Click on Tools >> ImportExportTools NG >> Import MBOX file.

7. Choose the MBOX file generated by Google Takeout.

8. Thus, you can successfully export Outlook emails to Mozilla Thunderbird.

B. Export Emails from Outlook to Thunderbird via MBOX

If you find this manual method lengthy and complex, you should try SysTools Outlook to MBOX Converter. This is a quick and easy solution compared to the manual method. This is how you can export Outlook emails to Thunderbird on Windows and Mac OS using this software:

Step 1. Download and launch the software.

outlook to mbox


Step 2. Click on Add file and go to the location of the PST file.

browse pst

Step 3. Preview all emails in the panel after scanning.

preview emails

Step 4. Select MBOX file format after clicking the Export option.

select nbox to transfer emails from outlook to thunderbird

Step 5. Click on the Export button to export Outlook emails to Thunderbird.

export outlook emails to thunderbird mbox

Benefits of Using Outlook to MBOX Converter

This is a Windows-based software compatible with all latest versions of Windows OS 10, 8.1, 7, etc. It can process any size of PST files without any data loss. The MBOX file created by this application is suitable for importing in any supported email clients on both Windows and Mac OS. Moreover, it allows users to retain the original folder hierarchy and export Outlook email attachments.

Some Relevant Queries about Outlook Email Export into Thunderbird

I am moving to Thunderbird email from MS Outlook 2016. Though I have all the Thunderbird contacts imported in Outlook already, I could not understand how to export Outlook emails to Thunderbird. Can anyone tell me how do I transfer emails from Outlook to Thunderbird? Hope to get an answer soon. Thanks.

I was given an orphan Outlook data file and instructed to access the Outlook email data on my Thunderbird account. All I know is this data file type is not supported by Thunderbird and I need to go through some conversion processes. As I do not have clear idea about the export process, I hope that the fellow members of this forum will be able to shed some light on this matter.


People who want to switch to Thunderbird from Outlook also have to move their email data between these email applications. This blog aimed at providing some useful solutions to the users who want to export Outlook emails to Thunderbird. Now, it is up to the users which method they want to opt to move Outlook data into Mozilla Thunderbird.