Thunderbird and Outlook are popular email applications. Small and large companies prefer to use Outlook for business purposes because of its advanced features and friendly interface. To migrate Thunderbird emails to Outlook firstly you need to convert thunderbird MBOX file into PST Outlook format.
In this blog post, we will discuss the best methods used to migrate Mozilla Thunderbird to Outlook. There are two methods first one is the manual method and the second one is using eSoftTools Thunderbird to Outlook Converter.
Methods used to Convert Thunderbird Emails to Outlook
There are three methods used for the conversion of Thunderbird Outlook with all Thunderbird attachments and emails.
Method 1- Migrate Thunderbird to Outlook using the IMAP method
Step 1. Activate the IMAP Access
- Go to Gmail and sign in to your account after that click on the settings
- Select Forwarding and POP/IMAP then activate IMAP
- Click on Save
Step 2. Sign In Thunderbird with Gmail IMAP account
- Visit Thunderbird and go to File Menu and click on New and Existing Mail account
- Press email under set-up account option
- Enter your gmail ID information and click on continue button
- In last press the IMAP radio tab and press done tab.
Now the account has been linked with Gmail to Thunderbird. Create a folder with the Gmail account and export data from Thunderbird to Gmail. It will extract all your data. Check Gmail account and see whether the data is there or not. When data is exported, configure MS Outlook to Gmail with IMAP server and just download data. The process is easy but it is not a reliable method.
Method 2- Export Data from Thunderbird to Outlook using Drag and Drop Method
This process is a very time taking process but it is very effective in Thunderbird export mail to Outlook. Read out every steps to manually migrate emails from Thunderbird to Outlook.
Step 1. Export Emails to EML Format
- Firstly Launch File Explorer and Create a new folder give it a proper name
- Sign in with your Thunderbird
- Select the Thunderbird emails that you wish to move into Outlook
- After the Selection of emails that you wish to move, right click and press save selected messages

- Now the emails will be saved in EML format
Step 2. Import EML File to Outlook
- In first,Open the MS Outlook application and sign in with your account
- Do the creation of new folder to import thunderbird emails
- Simply choose the .eml files and use drag and drop method to move content to Outlook folder
- Let the process get complete to finsh the import process
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Challenges with the Manual Method
However the manual method is a straightforward and free way to convert the files. Therefore, there are certain challenges associated with it.
- This method doesn’t work for large data or folder files
- The complete migration is not guaranteed
- High chances of data loss
- Not reliable it can moderate the structure of the folders
- These methods are time-consuming.
Method 3- Export Mail from Thunderbird to Outlook using eSoftTools Thunderbird to Outlook Converter
As you Know the manual methods are not much very effective when it comes to conversion of large data. So with this eSoftTools Thunderbird to Outlook Converter you can export all Thuderbird emails to Outlook.
Steps of Thunderbird MBOX to PST Conversion
- Install and open the eSoftTools Thunderbird to Outlook converter application

- If you know where the location of MBOX files is, add files or to search the files click on the browse tab
- After that it shows 3 type of file options

- So click on the Thunderbird Profile and you can also see the live preview of items

- Directly export all emails to PST in just a click
- If the MBOX folder is huge, save every MBOX file in a separate PST file
- It will take few seconds for conversion
In Short
Finally we discussed the three methods to convert your mailbox items like tasks, notes, subject, attachments, appointments etc from Thunderbird to Microsoft Outlook.
Above discussed 2 manual methods is very effective when you require to export Thunderbird Emails to Outlook containing small amount of emails.
But for the secured MBOX to PST Conversion on Microsoft, you can use eSoftTools Mozilla Thunderbird to PST Converter. This software also enables the users to export thunderbird emails to outlook with maintaining each structure of the folders.