Migrate Thunderbird to Office 365 – Step by Step Guide

Last updated on September 6th, 2022 at 10:56 am

Mozilla Thunderbird is a popular cross-platform email client, and chat client. It uses the MBOX file format to store users’ data. In starting days, its demand was on the peak, and millions of peoples around the globe were using Thunderbird. Nowadays, time and requirements have been changed, and Thunderbird users are shifting from Thunderbird to Office 365.

Keeping eyes on today’s needs and working environment, Office 365 is the best alternative to replace Mozilla Thunderbird. Office 365 is a subscription-based service, and it offers software as a service (SharePoint, Skype for Business Server, and hosted Exchange Server) to make the working environment multi-functional and hassle-free. There are many reasons as well as benefits to migrating emails from Thunderbird to Office 365.

Download Thunderbird MBOX File Migrator tool to Export thunderbird emails to Microsoft 365


Profits of migrating Thunderbird emails to Office 365

There are lots of benefits to using Office 365. Some of them are mention below:

  1. Many business users, use smartphones and tablets for personal and business purposes. They want to access their emails from anywhere and at any time over the internet, but Thunderbird doesn’t provide this facility. While In Office 365, users can access their emails from anywhere and at any-time.
  2. Office 365 has different subscription plans to suit everyone’s needs. Everyone can choose an Office 365 plan according to their requirements and size. Office 365 has something for all kinds of businesses and individuals.
  3. After moving to Office 365, the user gets unlimited Office applications offered by Microsoft, such as Skype, Exchange Server, Microsoft Word, Excel, PowerPoint, et cetera for free. Office 365 also provides collaboration, data share, communication, and storage.

These were some benefits of moving to Office 365, now the question arises, how to migrate emails from Thunderbird to Office 365?

Ways to migrate emails from Thunderbird to Office 365

There are manual way and professional tools, two ways are available to migrate emails from Mozilla Thunderbird to Office 365. Here we are explaining one manual way and one professional tool. Begin with the manual method.

Import Files from Thunderbird to Office 365 using the manual method

Firstly Office 365 doesn’t support the MBOX file, so you cannot migrate the MBOX file directly to Office 365. To migrate the MBOX file from Thunderbird to Office 365, users have to convert all data into a supportive format such as EML and PST.

The manual method has two phases. In the first phase, you have to migrate MBOX file data to PST file format, and then convert the PST file into Office 365. Let’s discuss those briefly:

  1. Convert the MBOX file from Thunderbird to Outlook

  • At first, create a new folder on your system.
  • Launch Thunderbird, open the folder where the emails are stored, which you want to migrate.
  • Choose the emails and then click on Save as, an option from the menu.
  • Browse the folder (Created on the first step) save the e-mails on it.
  1. Import e-mails from Outlook to Office 365

  • Open the Outlook application on your system.
  • Browse the folder where you want to save the Thunderbird emails, or you can create a new folder. (make a click on the folder tab. After that, choose the new folder option, and create a new folder)
  • Now, click on the Ok button. The folder you have created will be shown on the left side of the email application.
  • Now, click on the folder to view/open its content at the center panel.
  • At last, drag all the emails from the desktop folder to this folder in Outlook.

This is how you can convert MBOX files from Thunderbird to Office 365. But the manual method has some drawbacks and limitations too.

Drawbacks of manual methods

  1. The manual method has restrictions on the number of emails migrated. Hence, users can only migrate a few mails in a single go. If any user has many emails to migrate, then it has to repeat the same process again and again.
  2. The manual method is time-consuming and complex. Non-technical users and beginners cannot pursue a manual way without any technical assistance and knowledge.
  3. In the manual method, there is no guarantee of successful migration. Besides this, the manual method is not able to keep the data integrity and folder hierarchy maintained. Usually, in the manual method mail formatting and SMTP header are changed for a few emails of Thunderbird.
  4. In the manual method, there are high chances of data loss as well as human error. A little misstep and all your data will become trash.

Note: One can read another blog on Export Thunderbird to Outlook

Safest Way to Migrate Thunderbird to Office 365

To eliminate the tediousness and overcome data loss risk, maximum people use a third-party tool to migrate Thunderbird emails to Office 365. Shoviv MBOX to Office 365 is the safest utility to migrate data from Thunderbird to Office 365.

Shoviv MBOX to Office 365 Migration Tool

To migrate MBOX files to Office 365, many organizations use MBOX to Office 365 migration Tool developed by Shoviv Software. It is an astounding and professional utility mainly developed to migrate MBOX files from Thunderbird to Office 365. This software allows users to pursue the migration process without any glitches and in a hassle-free manner.

Why use Shoviv MBOX to Office 365 Migration Tool?

There are lots of reasons, as well as the benefits of using Shoviv MBOX to Office 365. Some of them are mention below:

  1. It keeps a simple and handy GUI, which makes this software easy to use for everyone. Even a non-technical and beginners can get high-quality results by using this software. To use Shoviv Software, users don’t need any pre technical knowledge and assistance.
  1. This software offers many file formats (PST, EML, MSG, and Live Exchange) to convert MBOX files data. Besides this, users can add and migrate unlimited MBOX files in a single go.
  1. Shoviv MBOX to Office 365 Migration Tool is built with a highly advanced algorithm, which makes this software able to maintain the data integrity and folder hierarchy. This software doesn’t alter the original data structure of the file.
  1. Every user and organization wants to get assured about the product before purchasing it. To resolve this issue, Shoviv Software offers a free trial version of the software. Users can download and use the trial version to check the software’s skills and abilities before purchasing it.

Steps to Migrate Thunderbird to Office 365 Mailbox are:

  • Install Shoviv Thunderbird MBOX File Migrator Tool.
  • Run, and Add MBOX files or Folders.
  • Select Export types as “Export in Office 365 Mailbox”
  • Enter the Microsoft Office 365 credentials.
  • Click on the Export button, and the process will start.

How to use Shoviv MBOX to Office 365 Migration Tool – Detailed Steps

As we said, this software keeps a user-friendly and convenient GUI, which makes this software easy to use. To migrate emails from Thunderbird to Office 365 using this software, pursue the simple steps given below:

  1. Install and Open Shoviv MBOX to Office 365 Migration Tool.
  2. Click on the Add button available on the ribbon bar. Migrate Thunderbird to Office 365-img-01
  3. The user can add MBOX file by using Add Folder and Add Files option. After that, click on the Add button. Migrate Thunderbird to Office 365-img-02
  4. Now click on the Office365 option given on the ribbon bar. Migrate Thunderbird to Office 365-img-03
  5. In the next dialog box, check or uncheck After that, enter the Office 365 credentials (User email, password, and choose a particular target). Besides this, the filter option is also given in this dialog box. Now make a click on the Export option. Migrate Thunderbird to Office 365-img-04
  6. After clicking on the export button, the migration process will start. Migrate Thunderbird to Office 365-img-05
  7. Now you can see and save the log report. The log report contains the MBOX file name, Item Count, Export Count, et cetera.Migrate Thunderbird to Office 365-img-06

These were the few steps to migrate emails from Thunderbolt to Office 365 in a hassle-free manner.

Wrapping Up

Migrating MBOX files to Office 365 by using the manual method is like walking on eggshells. It is very tough for non-technical and first-time users. The manual method has many restrictions and loopholes. To migrate MBOX to Office 365 flawlessly, and without any glitches, one can use a professional third party tool (Shoviv MBOX to Office 365 Migration Tool). Using this professional tool is as easy as pie.

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About the author

Jenniffer is a Microsoft-certified professional and has helped thousands of clients with their Outlook and Office 365 problems. She loves to write about email clients and data recovery. She always remains enthusiastic about providing all the latest information, solutions, and advancements to readers.

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