Sysinfo
Thunderbird to Office 365 Converter
Software to Convert and Export Thunderbird Emails to Office 365 and 7 Other Email Clients

Sysinfo Thunderbird to Office 365 Migration Tool is the finest utility to migrate all the emails directly from your Thunderbird Account to your Office 365 account without any data loss. It uploads all mailbox items including calendars, tasks, inbox, and other folders from Thunderbird to O365.

  • Converts and Uploads all the Thunderbird MBOX File Emails to Office 365.
  • Directly Configures the Thunderbird Account and migrates emails to Office 365.
  • Exports All Thunderbird MBOX items to 7 Other Emails Clients Gmail, Yahoo, AOL, Hotmail, IMAP, Zoho Mail, and iCloud.
  • Compatible with all versions of 7 Windows Windows 11, 10, 8.1, 8, 7, Vista, XP, etc including Windows 11.
  • Thunderbird Installation is Mandatory to perform the Thunderbird to Outlook 365 Conversion.
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(Average Rating 4.8 Based on 1527 rating)

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*Sysinfo Thunderbird to Office 365 Converter is Fully Secured to Download.

 Note : Check Pre Installation Guide

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Benefits of MBOX to Office 365 Converter

  • Imports all the Emails from MBOX File to Office 365 with all attachments.
  • Exports Thunderbird Mailbox of any size to Outlook 365.
  • Preview all the emails of the Thunderbird Account before migration.
  • Migrates Thunderbird MBOX file emails to Gmail, AOL, Yahoo Mail, IMAP, Hotmail, iCloud, and Zoho Mail.
  • Supports all versions of Thunderbird and the files created in it like MBX and MBS.
  • Equipped with a Date Range Filter option to filter the Thunderbird to O365 conversion on the basis of dates.
  • Thunderbird to Office 365 Migration Tool has a user-friendly interface so that a novice user can run it easily.

Awards & Reviews

User Image

Sysinfo Thunderbird to Outlook 365 Migrator is the best utility to export all emails from the Thunderbird-based MBOX file to Office 365 with all attachments and mailbox items.

User Image

The MBOX to Office 365 Migration tool has an intuitive interface that enables even a non-technical user to upload all emails from his Thunderbird Account to his Office 365 Account.

Steps to Upload Thunderbird Emails to Office 365
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Need for the Thunderbird to Office 365 Converter

When Thunderbird Account Space is Full

When Thunderbird Account Space is Full

Thunderbird usually stores thousands of emails and sometimes that inbox gets full. In such a situation you will need the Thunderbird to Office 365 Converter to move all the emails from your Thunderbird account to your Office 365 account. All your emails will be moved to Office 365 and it will create space on your Thunderbird Account.

When a User Changes his Preferred Client

When a User Changes his Preferred Client

Sometimes when a user moves from one client to another then he needs an automated tool to move emails in bulk. Therefore, the Thunderbird to Office 365 Migration Tool will be helpful if you are migrating from Thunderbird to Office 365 because it efficiently moves all mailbox items in bulk.

When you want to Upload MBOX Emails to Outlook 365

When you want to Upload MBOX Emails to Outlook 365

Thunderbird usually stores all emails in an MBOX file. So if you want to upload MBOX file emails to Outlook 365 then manually it is very difficult to do so. Therefore, the MBOX to Office 365 Migration Tool quickly uploads all emails from MBOX to Outlook 365 and this software automatically adds the MBOX file if you have the Thunderbird Application installed on your PC.

Prominent Features of MBOX to Office 365 Migration Tool

Exports Thunderbird Emails to Office 365

Exports Thunderbird Emails to Office 365

Sysfino Thunderbird to Office 365 Migrator easily exports all the mailbox items including Inbox, Calendars, Tasks, and attachments to Office 365 without any data loss. You can even migrate large Thunderbird Mailboxes to O365 with the help of this tool.

Migrates Thunderbird Emails to 7 Other Clients

Migrates Thunderbird Emails to 7 Other Clients

The Thunderbird to Office 365 Converter quickly exports all the emails from Thunderbird to other email clients as well. There are 7 different email clients to which you can migrate Thunderbird emails and they are Gmail, Yahoo, iCloud, AOL, IMAP, Hotmail, and Zoho Mail.

Safe and Reliable Thunderbird to Outlook Conversion

Safe and Reliable Thunderbird to Outlook Conversion

This software is 100% safe and secure to download and you can perform the conversion without any data loss. It exports every single item from your Thunderbird Mailbox to Outlook 365 and assures full conversion.

Imports Thunderbird Mailbox of Any Size

Imports Thunderbird Mailbox of Any Size

There is no size limitation for the Thunderbird Mailbox. You can add and export large Thunderbird Mailboxes to Office 365 with a high conversion speed. The chances of data loss during conversion are minimum.

Date Range Filter Option is Available

Date Range Filter Option is Available

If you want to migrate only sleeted emails on the basis of date then you can use this feature of the Thunderbird to Outlook Converter Software. You have to select the From and To date and this software will migrate emails received or sent only during the mentioned dates.

Preview Thunderbird Emails

Preview Thunderbird Emails

Before uploading Thunderbird Emails to O365, you can preview the emails of your Thunderbird Account. You can select the emails that you want to migrate in the preview section and then move them to your Office 365 account.

High Windows Compatibility

High Windows Compatibility

The MBOX to Outlook 365 Migration Tool is highly compatible with all versions of Windows including Windows 11. There are some earlier versions as well like Windows 10, Windows 8, and many others on which this software can be used easily.

Free Version is Available

Free Version is Available

MBOX to Outlook 365 Converter has a demo version that can be downloaded free of cost. If you want to evaluate the performance of this software then you can download the Free Thunderbird to Office 365 Converter and convert 50 emails per folder for free.

Self-Intuitive Interface

Self-Intuitive Interface

It’s difficult for many non-technical users to run software but the Self-Instructive GUI o this software has made the Thunderbird to Office 365 Conversion easier for them.

Thunderbird Installation is Needed

This software automatically adds the MBOX file from the path where the Thunderbird Application stores it. Therefore, Thunderbird needs to be installed in order to use this software.

Software Specifications

Check out the Specifications of this Software and then download it on your system.

About Product Version
v22.12		 License
Multiple User		 Edition
Home, Administrator, Technician, and Enterprise		 Last Updated On
23rd December 2022
Requirements & Supported Versions Pentium class processor Minimum
512MB RAM (1GB Recommended)		 Disk Space:
Enough space to store the recovered output		 Support Windows:
Windows 11/ 10/ 8.1/ 8/ 7/, 2008/2012 (32 & 64 Bit), and other Windows versions
Supported Links
 User's Installation Guide  Customization Plan  Eula
Additional Information

Comparison of Trial Version & Full Version

Compare the Features of Thunderbird to Office 365 Converter Full Version and Demo Version in the table given below:-

Product Features Free Version Full Version
Imports Thunderbird Mailboxes to Office 365 50 Emails Per Folder All Emails
Uploads All Email Attachments to O365 50 Emails Per Folder All Emails
Exports Thunderbird Emails to Gmail, Yahoo, Hotmail, IMAP, Zoho Mail, iCloud, and AOL 50 Emails Per Folder All Emails
Date Range Filter Option
Removes Duplicate Emails during conversion
Maintains Data Integrity in the Office 365 Account After Conversion
24x7 Technical Assistance and Sales Support
100% Safe and Reliable Conversion
Price Free $99 Onwards
Money-Back Guarantee
Frequently Asked Questions

Clear all your doubts related to MBOX to Office 365 Migrator through the FAQ section and see what our clients have asked us.

How should I convert Thunderbird to Office 365?

You can follow the steps given below to convert and export Thunderbird emails to Office 365 account:-

  • Download Sysinfo Thunderbird to Office 365 Converter and Launch it.
  • The software will automatically configure your Thuderbird Account.
  • Then click on the Next Button to continue.
  • You can preview all Thunderbird emails.
  • Mark the emails that you want to migrate to Office 365 and click on Next.
  • In the Saving Client choose Office 365 and login through modern authentication.
  • After the Authentication, click on the convert button and all your Thunderbird emails will be migrated to your Office 365 account.

The demo version of this will only migrate 50 emails per folder and it is available for performance evaluation. The full version of this software doesn’t have any such limitation and you can migrate lakhs of emails from Thunderbird to Office 365.

No, Office 365 doesn’t support MBOX files and you can import the file to your account. Therefore, you will need the Thunderbird to Office 365 Migration tool to transfer MBOX file emails to Office 365.

You can follow the steps given below to migrate emails from Thunderbird to Outlook 365:

  • Download and Install the Migrator for Thunderbird to Office 365.
  • The software automatically fetches the Thunderbird File emails.
  • Mark the emails that you want to migrate to Outlook 365.
  • In the Save As option, choose Office 365.
  • Finally, authenticate the Outlook 365 login process and click on the Convert button.
  • All your emails will be migrated from Thunderbird to Outlook 365.

No, there is no limitation for the mailbox size because the Thunderbird to Office 365 Migration Tool can migrate mailbox of any size to O365

Client Review
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