How to Convert Mailbox From Thunderbird to Outlook PST? – Get Expert Solution

Transferring data from Thunderbird to Outlook is a complex task to carry because it involves manual workarounds. There is no direct add-on in Thunderbird, which provides straightforward method for the same. Talking about Outlook then, there is no measure by which we can directly open MBOX files in it. Now a very basic question arises in mind that why users want to convert Thunderbird data to Outlook 2016 / 2013 / 2010? So, let’s figure out a suitable answer for this query and solution to export Thunderbird to PST.

Need to Convert Thunderbird Data to Outlook PST

Well, there are several needs due to which users export Thunderbird to PST format. This also covers business requirements that help in growth for the same. This section will help you in determining demands to convert Thunderbird mailbox to PST Outlook compatible format.

Though Mozilla Thunderbird comprises of many good points but, there are certain disadvantages within it. Few of them are listed below:

  1. Mozilla RSS feed reader is not seamlessly incorporated
  2. Does not support feature to show posts or related things
  3. Difficult and complex to impose more security in the program
  4. No in-built feature that fulfills business needs of an end user

Now, discussing about Microsoft Outlook then, it acts like an all-in-one professional email program. It is having all those features, which a person requires at home or business level. This email client exhibits all aspects that an individual requires for his / her enterprise growth. Outlook stores data items PST file format that are located at their default location. Below-mentioned are some points that clearly describes a strong reason to move in Outlook:

  1. Microsoft program supports IMAP as well as POP3 protocols.
  2. The app supports several email accounts simultaneously
  3. Apart from email, it comprises of to-do lists, journals, etc.
  4. Provides feature of mail group to attempt easy management
  5. Functioning like spam filtering, search facility, etc., is equipped

After discussing all about pros and cons of Thunderbird and Outlook, one must be very much clear with need to convert Thunderbird data or MBOX files to PST. Besides all this, there is one more reasons due to which users want to convert Thunderbird mailbox to Outlook PST. This reason is illustrated with help of following scenario:

“I am an Outlook user who is working upon it since long time. One of my colleague have provided me with a MBOX file, which is generated from Apple Mail. When I am trying to open this .mbox file in Outlook then it displays an error statement. So, is there someone who can share his / her solution to open MBOX files in Outlook 2013?”

Basically, it means that the respective approach is also required when one is looking for solution to access MBOX in MS Outlook 2016, 2013, 2010, and prior versions.

How to Convert Thunderbird Data to PST Format

After covering all possible needs to convert from Thunderbird to Outlook, now it is the time to trap solutions for the same. Here, you will find all possible approaches. So, let’s get started!

Configuration of Gmail Account: Manual Way

The procedure is easy to hear but, difficult in implementation. It involves following major steps to be performed

  1. Open Mozilla Thunderbird on your PC and configure a Gmail account id within it
  2. When Gmail id gets configured in Mozilla Thunderbird, move all your MBOX files into recently configured Thunderbird Gmail profile
  3. If required then, delete Gmail id from Thunderbird; else skip this step
  4. Close all Thunderbird related applications and open Outlook on your machine
  5. Configure Gmail id in Outlook, which you have earlier added in Mozilla Thunderbird program
  6. All the items of Gmail account will be listed in Outlook, which also comprises Thunderbird mailboxes


  1. The discussed approach is not at all suitable when there is bulk amount of data to be exported.
  2. If a user is unaware from technicalities of Outlook and Thunderbird then, he / she should not opt for this workaround
  3. There is high risk of data loss and corruption, if in case something goes wrong in between the procedure.
  4. Installation of Mozilla Thunderbird and Microsoft Outlook is mandatory for execution of the process.

Direct Approach to Export Thunderbird to PST

Thunderbird to Outlook converter is the comprehensive measure to transfer MBOX mailboxes to Outlook PST format. It enables users to move multiple Thunderbird file or MBOX files at a time into one PST. The software is providing a smart option to split PST file so as to be safe from 2GB file size error. There is no need of any email client installation for exporting data from Thunderbird to Outlook.

Lets Wrap Up

Solutions on how to convert Thunderbird mailbox to Outlook PST file is demonstrated in this blog. If an individual finds many hurdles while implementing manual approach then, a direct and hassle-free way is equipped. The software recommended in the blog guarantees that it will not be harming existing data items while processing them.

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Edwin Hoffer
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