06-06-2025, 06:11 AM
One way to manually import MBOX to Office 365 is by using Thunderbird to export MBOX files as EML files, then importing them into Outlook and syncing with Office 365. This involves configuring your Office 365 account in Outlook, dragging the EML files into the desired folders, and allowing the data to sync with the cloud.
Alternatively, you can use the MigrateEmails MBOX File Converter is an extremely simple and reliable tool meant to ease the task of importing MBOX files to Microsoft 365. It is a universal tool for converting MBOX files from Thunderbird to Apple Mail to Eudora in formats usable by Microsoft 365. With an easy-to-use interface, the tool facilitates a smooth migration and maintains the integrity of email data during any process, such as attachments, metadata, and folder hierarchy.
Some additional great features included are selective migration, bulk file conversion, and previewing the contents of an MBOX before import.
Steps to Import MBOX to Office 365 in Bulk
1. Download, install, and launch the MBOX File Converter.
2. Choose Single File/Multiple Files or Select Folder, and then click Next. Now, hit the Select File button to add the MBOX file.
3. Browse to the location of the MBOX file, choose it, and click Open.
4. It will now display a list of all emails contained within the selected file(s).
5. Click on an email to view its content in the preview panel, which will show you things like the email body, attachments, subject, sender, date, etc.
Now, choose Office 365 from the panel and sign in with your credentials.
You have further options like Split Large Files, Save Attachments Separately, Remove Duplicate Mails, and Date Filter. Once configured, click "Convert" to start the conversion process.
Alternatively, you can use the MigrateEmails MBOX File Converter is an extremely simple and reliable tool meant to ease the task of importing MBOX files to Microsoft 365. It is a universal tool for converting MBOX files from Thunderbird to Apple Mail to Eudora in formats usable by Microsoft 365. With an easy-to-use interface, the tool facilitates a smooth migration and maintains the integrity of email data during any process, such as attachments, metadata, and folder hierarchy.
Some additional great features included are selective migration, bulk file conversion, and previewing the contents of an MBOX before import.
Steps to Import MBOX to Office 365 in Bulk
1. Download, install, and launch the MBOX File Converter.
2. Choose Single File/Multiple Files or Select Folder, and then click Next. Now, hit the Select File button to add the MBOX file.
3. Browse to the location of the MBOX file, choose it, and click Open.
4. It will now display a list of all emails contained within the selected file(s).
5. Click on an email to view its content in the preview panel, which will show you things like the email body, attachments, subject, sender, date, etc.
Now, choose Office 365 from the panel and sign in with your credentials.
You have further options like Split Large Files, Save Attachments Separately, Remove Duplicate Mails, and Date Filter. Once configured, click "Convert" to start the conversion process.
