MailsDaddy is a reliable utility that enables you to convert Thunderbird files to Outlook PST files. Moreover, you can easily convert Thunderbird MBOX and Maildir files to Outlook without installation.


MailsDaddy Thunderbird to PST Converter software comes with a simple user interface and intuitive controls which means one can use it with ease. However, you can also find out more about this Thunderbird to Outlook converter software, just read our comprehensive review.

System Requirements

Like any other utility solution available in the market, MailsDaddy Thunderbird to PST converter has a list of system requirements. The purpose of this requirement list is to help you understand whether your PC can run this program.


  • Processor: 2.4 GHz
  • Memory: 50 MB RAM
  • Space: 100 MB
  • Disk Space: Enough space to store the output


This application runs on all Windows edition and Outlook versions. 

Try Thunderbird to Outlook utility for a free

MailsDaddy offers to use the free demo edition of the software and export 20 emails from each mailbox without any modification. The demo trial version comes with the software and supports MBOX and Maildir files of Thunderbird.

How to install this utility?

Double click on thunderbirdoutlook.exe and run it.


After that accept the license agreement, set a destination path on your machines, adjust the shortcut actions of the installer and last click the Install button.


Steps of Thunderbird to PST Converter Utility

  1. Run the software and click on Add >> Autoload
  2. After loading the mailbox, click on Next >> Export >> Select PST file
  3. Enable single or separate PST option >> Save the destination and press the export button.


The process ends according to the file size so wait till the confirmation window shows up. After that, you can easily open it in any Outlook version. There is no technical skill required to convert Thunderbird to PST format for MS Outlook.


Read more: Thunderbird to PST