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MBOX to Office 365 converter

joyhopsonjoyhopson Member
edited February 13 in Forum support
If you want to migrate Thunderbird to Outlook 365, then using the best software that name is eSoftTools MBOX converter software, It has excellent features that easily convert your single as well as bulk Thunderbird MBOX file to Office 365 at once, it can support all edition of MS Outlook 2019, 2016, 2013, 2010, 2007, & 2003. During conversion, all email header, formatting, styles, are preserved. It can also offer a demo pack in which users can convert the initial 25 items of Thunderbird MBOX to Office 365.

Read more:- MBOX to Office 365 converter


  • Method 1: Migrate MBOX to Office 365 by using Thunderbird and Outlook

    This is an indirect method is comprised of two major steps, as follows:

    Convert MBOX to Outlook PST
    Export PST file to Office 365 account
    Note: Both the applications must be installed on the same machine – Thunderbird and Microsoft Outlook.

    Step #1 Convert MBOX to PST

    Open the Thunderbird email client and select the required folder from the left panel of the screen.
    Go to right panel and select all the emails in that folder with ‘Ctrl+A.’
    There is a blue highlighted message. Right click on the highlighted message and select the Save As option from the displayed menu
    Browse the location to save the folder and click ‘select folder.
    Once the folder is saved, minimize the email client – Thunderbird and open Outlook
    Right-click on the folder in which the saved data is to be moved (emails from Thunderbird) and select the option – ‘Create a new folder.’
    Next, name the folder
    Go to Thunderbird again. Drag the saved folder and drop it in the recently created folder in Outlook
    Save the folder in PST format
     Step #2 Export PST file to Office 365 account

    Export PST to Office 365 with the help of Network Upload:

    Install Microsoft Azure AzCopy on the PC and create a copy of SAS URL
    Upload recently created PST file
    View all emails in PST file
    Make a new mapping of PST data file and generate a PST import job in Exchange online account.

    I hope this manual method will be helpful!
    Tim Paine
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