This article is discussed about why and how to convert Thunderbird emails to Outlook PST format to import Mozilla Thunderbird mail folders into MS Outlook 2016, 2013, 2010 and 2007 etc. So read this technical stuff to make sure how to migrate Thunderbird messages to MS Outlook along with same folder structure and e-mail attachments. 
Mozilla Thunderbird is a free open source email client which is used by several users for managing business e-mail accounts. Thunderbird uses .mbox extension to save e-mail account data and create separate files for each mail folder without any extension such as: Inbox, Draft and Sent etc. These files can be used with other MBOX supported email clients like: Apple Mail, Mac Entourage, Eudora and PocoMail etc. But MBOX file type is not supported by Microsoft Outlook which is the best alternative for professionals.
Why Need to Convert Emails from Mozilla Thunderbird to MS Outlook?
Using Mozilla Thunderbird for business is quite less secure because it is a free open source application and you will not able to claim for any loss. Another strong reasons for migrating Thunderbird to Outlook are advance features and security concerns which help to improve our business and make emailing secure. Apart from these reasons there are several other causes where user think about Thunderbird to Outlook conversion. So the main point is that how to convert Mozilla Thunderbird mail folders to PST format to use them with MS Outlook.
How to Transfer Thunderbird Emails to Outlook?
There are two methods by using them you can convert Thunderbird emails to Outlook. One is Manual and second is MailsDaddy MBOX to PST converter.
Manual solution for Thunderbird to Outlook conversion
You can migrate Mozilla thunderbird to Outlook with a few manual steps and other email programs. But a manual technique to move Thunderbird data to MS Outlook is quite time consuming as shown below:
1. In the very first step, rename your Thunderbird MBOX files with .mbx extension for eg: Inbox to Inbox.mbx
2. Now install Eudora on your PC and copy these files to their default file location (C:\Documents and Settings\myusername\Application Data\Qualcomm\Eudora)
3. Launch the Eudora mail and you will able to see these file in Eudora.
4. Export Mails from Eudora to Outlook Express
5. Import Emails from Outlook Express to Microsoft Outlook
Convert Thunderbird to PST format by Using MailsDaddy MBOX to PST Converter
This is the most suitable method for migrating Thunderbird user mailboxes to Microsoft Outlook. You just need to download and install the software on your PC to complete the conversion task.
1. Search or Browse all thunderbird folders. The software will load and preview messages.
2. Click on the Export button, choose required options and click on the Export button. You can check all steps here: http://www.mailsdaddy.com/mbox-to-pst-converter/thunderbird.php
Check Out SysInfo Mbox To PST converter for ultra fast and effective conversion.
For free version users can check out the following link : https://www.sysinfotools.com/recovery/mbox-converter.php
Thunderbird to Outlook Converter makes it straightforward to migrate single as well as multiple Thunderbird files to Outlook PST in a single go. It comprises highly developed features and filters that guarantee error-free and smooth emails conversion. It embraces highly developed preview tools as well.
http://www.thunderbirdtomsoutlook.com/
I have found one more solution: https://www.gaintools.com/mbox/pst/
Thunderbird email client manages it email files by storing the data files as MBOX file format. So for Thunderbird to Outlook PST conversion, we need to migrating MBOX files to Outlook PST format. For making the process more easier, take the help of MBOX to PST converter software which converts MBOX file that formally supports many email clients like Thunderbird, Apple Mail, Windows Live Mail etc into Outlook file. Conversion is not a very easy task for the users and the system administrators when performed by the manual way but MBOX to PST Conversion Tool makes the MBOX conversion safer. This Software supports the recovery of data from MBOX file and saves it into the new file. Also, supports batch Conversion of MBOX to PST file in no time.
For free MBOX to PST converter: https://gallery.technet.microsoft.com/Easy-MBOX-to-PST-b74e6236?redir=0
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You may try CubexSoft MBOX Converter software for converting Mozilla Thunderbird emails to Outlook PST successfully. It provides 100% safe and secure conversion of Thunderbird MBOX emails to Outlook PST for all MS Outlook (32-bit and 64-bit) editions.
For more info click here: https://gallery.technet.microsoft.com/MBOX-Export-Tool-A-fba6a0df
You can also take the help of Mailsware Thunderbird Converter Toolkit. The software provides you the 100% safe and secure conversion. It allows to bulk convert Thunderbird emails to PST along with attachments. The software does not require the installation of any external application.
Please visit the link to know more: http://www.mailsware.com/thunderbird-converter.html