How to Import Mail from Outlook to Thunderbird? – Query Resolved

Summary: Searching for a solution to import mail from Outlook profile to Thunderbird? If yes, then here I am offering an accurate and reliable solution i.e. PST to MBOX Converter to smoothly and quickly resolve the question of “how to import mail from Outlook to Thunderbird” along with attachments. It is a perfect way for you to instantly convert your PST files into MBOX file format.
Why Do Users want to Change Their Outlook Emails in Thunderbird?
There are many reasons why a user wants to convert Outlook emails to Thunderbird MBOX format. Here are some reasons:
- Free of Cost Application – Mozilla Thunderbird is a free and open-source application. Users can use the application without piercing their pockets. Users do not have to pay 1 cent at a time. This is one of the main reasons users choose it.
- Compatible with Different Devices – This is another reason users choose Mozilla Thunderbird is that they are suitable for different operating systems. MS Outlook is workable with Windows OS but supports Mac OS, Linux, and UNIX.
- It provides many features like quick search, saved search folders, advanced message filtering, messaging grouping, and so on.
With so many advanced features, end-users plan to transfer their PST files to the Thunderbird application.
Solution to Migrate and Convert Outlook Emails to Thunderbird
Are you looking for a direct solution to move Outlook emails to Thunderbird? If yes, then, stop searching, here you are at the right place to find the solution. In this blog, we are advising the Outlook Converter software – a direct way for users to successfully convert Outlook emails to Thunderbird email clients along with attachments. Both technical and non-technical users can easily handle and works with this software without any problem. Each and Every professional and individual person can use this converter utility to solve the commonly asked question “how to import mail from Outlook to Thunderbird”.
The newly updated version of the software provides so many advanced options to direct export Outlook emails to the Thunderbird email app. You can convert both single and multiple emails from Outlook profile to Thunderbird without any single data loss. The best thing about the software is that it doesn’t need the installation of MS Outlook to perform Outlook emails to Thunderbird conversion. Now, in the next part of the blog, we will explain the complete working process of the software to know how to perform Outlook files to Thunderbird migration process with successful results.
Follow the Step-by-Step Method to Import Mail Outlook to Thunderbird
Step 1. Download and Launch the software on your Windows system

Step 2. Hit on the Add Files option and upload Outlook .pst files or folders using the “Export Single File and Export Multiple Files” option. You can also search the PST files from your desktop.

Step 3. Now, the software will upload all the Outlook .pst files into the software. If you don’t need to convert, you can deselect any file by clicking on their checkboxes.

Step 4. Now, choose the saving option by clicking the Export button. Then, select the Thunderbird saving option as per your need.

Step 6. Select other sub-options as per your requirements. Then click on the Convert button. You can also watch the live conversion progress during the process.

Step 7. When you clicked on the Convert tab, the software will start moving Outlook emails to Thunderbird profile location with the success message. Then, press the OK to done the process.

How to Open PST File in Thunderbird Using Free Methods?
Important Note: We don’t advise using manual approaches for any process. Yes, you can choose manual techniques if you have a single data to import. Additionally, if the PST file contains a lot of data, consider a professional solution. Additionally, create a backup of the PST file because data loss problems do occur occasionally.
You must first add the orphan PST file to Outlook if you have one. then begin the procedure. Open Outlook and select the “Open & Export” >> “Import-Export” option from the file tab. Next, select the file to import by clicking “Import from Another Program or File” >> “Outlook Data File (.PST)”.
Step1. Set Outlook as the default software first.
Step2. Launch Thunderbird now to access your email.
Step3. After that, click the menu button and select the “Tools” >> “Import” option.

Step4. Hit “Next” and then “Outlook” after selecting the “Mail” option.

Step5. Finally, press the “Finish” button to start the procedure.
You will now have access to all of the PST data in Thunderbird. So, opening PST files with Thunderbird is simple.
Manual Methods have Drawbacks.
- Outlook can export the PST file, but only if IMAP is enabled on the IMAP accounts.
- Both the source PST and the destination Thunderbird could be damaged by a sudden import process interruption.
- Files from more than one account cannot be imported simultaneously.
- The user has a number of filter options available when exporting a PST file. The only files that will be imported in the case of filtered PST files are those.
Using a third-party application like CubexSoft PST to Thunderbird will be the best answer to overcome all these restrictions of the manual techniques.
Summing Up
In this write-up, we have explained the best and direct solution to import mail from Outlook program to Thunderbird. We assumed that you have found a suitable solution for you to perform the conversion of Outlook files to Thunderbird. The best part of the software is it is also offered a free Demo Edition, which enables you to analyze its complete working before getting its licensed version. This free demo version is applicable to convert 25 emails from each Outlook PST file to Thunderbird without any cost. For bulk conversion of Outlook PST files to Thunderbird, you must purchase the license key of the Outlook File Converter software.
