Hello Readers! Today, in this post, we will address the one situation where users want to migrate Thunderbird to Office 365 mailbox, but don’t know the process. If you are also looking for a solution to perform Thunderbird to Office 365 migration, then you have come to the right place. In this article, we are going to discuss the two best ways to transfer Thunderbird emails to Office 365.
Thunderbird is a desktop email client and open to cross-platform. It grants permission to the users to configure multiple email accounts with the IMAP/POP3 Server settings., But as the latest trend of cloud, Organizations and individuals are increasingly adopting cloud solutions for easy access and better management. Office 365 is a cloud-based email platform that offers advanced features such as enhanced security, anywhere access, and seamless integration with Microsoft applications. As a result, migrating emails from Thunderbird to Office 365 has become a common need.
Both Thunderbird and Office 365 are different in nature. Thus, making the Thunderbird to Office 365 migration a complicated process. Here in this write-up, we will break down the step-by-step process to export Thunderbird emails to Outlook 365 mailbox.
How to Migrate Thunderbird to Office 365 Manually?
Follow the below given steps to connect Thunderbird to Office 365 manually:
- Open the Thunderbird application on your system.
- Go to Tools > Account Settings.
- Click Account Actions > Add Mail Account.
- Enter your name and Office 365 email address, and password.
- Check the box to remember your password.
- Manually enter the required IMAP and SMTP server settings.
- Click Done to complete the setup.
- Select emails or folders from your Thunderbird Local Folder.
- Drag and drop into your Office 365 mailbox folder.
Don! In this way, you can import Thunderbird emails into Outlook 365 but it may takes lot of time to complete the process.
How to Transfer Thunderbird Emails to Office 365 Automatically?
To migrate emails from Thunderbird to Outlook 365, you can use the Xtraxtor Thunderbird Converter on your Windows OS. With its simple interface, it is easy to operate this tool and migrate Thunderbird to Office 365 with attachments. This smart utility auto-detects Thunderbird profile and transfers its emails to Office 365 account directly without any error. It will maintain the email folder and sub-folder hierarchy and structure.
Download the demo version of the software and learn the migration process.
Steps to Migrate Emails from Thunderbird to Office 365
Step 1. After installing the software, run it on your Windows OS system.
Step 2. Then, select Open >> Desktop Email Client >> Thunderbird Account >> Configured Thunderbird Profile.

Step 3. Before migrating the Thunderbird emails, you can view them here.

Step 4. Click on Export and choose Office 365 option.

Step 5. If you don’t want to transfer entire mailbox data, then you can select the email folders that you want to transfer.

Step 6. At last, enter your Office 365 login details and hit on the Save button.

Done! Here, complete the process and you will efficiently migrate Thunderbird emails to Office 365 with attachments. You can also use the trial version of the software and transfer emails from Thunderbird to Outlook 365 account.
Why Use Thunderbird to Office 365 Migration Tool
With this software, there are various outstanding features that migrate emails from Thunderbird to Office 365 with efficiency.
- Direct Thunderbird to Office 365 Export: This tool will transfer emails from a configured Thunderbird account to Office 365 directly. You just need to enter your Office 365 login details and the software will immediately transfer your Thunderbird emails without any hassle.
- Maintain Mailbox Hierarchy: While migrating emails from Thunderbird to Outlook 365, this tool preserves the email folder and sub-folder structure. Throughout the process, there will be no alteration or modification of data.
- Advance Filter Options: The software offers various email filter options that can us to export selective Thunderbird emails. You can apply various filters – to, from, cc, bcc, date, time, name, content, property id & name, has attachments, etc.
- Export to Other Email Clients: This Migration tool also helps to export Thunderbird emails to Outlook, Windows Live Mail, Apple Mail, and other webmail accounts.
- Preserve Email Attributes: While migrating Thunderbird emails to Outlook 365, this tool upholds all email properties. It will export emails with sender info, subject, content, attachments, hyperlinks, inline images, and many more.
- Data Extraction: With the help of this tool you can extract email addresses, phone numbers, attachments, and associated email addresses and phone numbers.
- Simple User Interface: The software is designed with a simple graphical interface so that any beginner and non-technical users can operate it and migrate Thunderbird emails to Office 365 account.
Conclusion
This blog helps to migrate Thunderbird to Office 365 mailbox with attachments. Both methods are 100% workable. You can follow manual as well as the professional method to transfer Thunderbird to Office 365 at your own convenience. However, we recommend the automatic ones because of their advantages.
Frequently Asked Questions
Q1. How do I migrate from Thunderbird to Office 365?
Ans. You can manually connect Thunderbird to Office 365 or use a professional tool.
Q2. Can I export emails from Thunderbird to office 365 in bulk?
Ans. Yes, with Thunderbird to Office 365 migration tool, you can transfer emails from Thunderbird to Office 365 in bulk.

