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Moving from a desktop-based email client to the cloud for business is a smart move, but there’s one challenge: Office 365 does not support MBOX files. If you are trying to import MBOX to Office 365, you already know that there is no button in Microsoft 365 to import MBOX file.
Whether you are moving a single data file or folders of MBOX files, preserving data integrity is the top priority. In this post, we will simplify the process for you and help you to migrate MBOX emails to Microsoft 365 mailbox. Besides, we also discuss the reason for the migration, followed by the methods to do it. Let’s discuss.
Reasons to Import MBOX to Office 365 Account
There are various benefits of importing MBOX emails to Microsoft 365 mailbox. Some common scenarios include;
- Better Security: Office 365 has strong security measures that will secure your important data.
- Additional Tools: With a Microsoft 356 subscription ther are various integrated tools like Microsoft Teams, OneDrive, SharePoint, Word, Excel, and PowerPoint to increase productivity.
- Easy Sharing: Since Office 365 uses a shared mailbox, it will be easy to communicate, share files, manage projects, and work together more efficiently.
- Flexible Accessibility: Office 365 is a webmail service that can be easily accessed on computers, smartphones, tablets, and web browsers.
- Support Multiple Languages: With its multiple language feature, it is suitable for users worldwide.
- Adaptable Storage: Users can upgrade their plan to get more mailbox storage when needed.
Here we discuss the reasons for the MBOX to Office 365 migration. Now let’s talk about the actual process.
Manual Method to Import MBOX File to Office 365 Mailbox
There is no direct manual way to migrate MBOX emails to Office 365. Alternatively, using an email client that supports MBOX files, you can import your emails. Here, we will transfer MBOX emails using the Thunderbird client and follow the instructions.
- Open Thunderbird and add your IMAP account.
- To do that, click on Settings > Account Settings > New Account.

- Enter your Office 356 account details, and let Thunderbird configure it automatically.
- A new window will appear for confirmation, re-enter the password, and sign in.
- Click on the Request Approve button to approve for importing. Now you access Office 365 emails in TBird.

- After that, you need to import MBOX to Thunderbird client.
- For that, click on the Import button.

- Then choose Import from a file > Import Backup profile and choose the MBOX file in zip format.

- Now you have an MBOX file, right-click on it and move to your Office 365 account that you configured recently.
Here are the complete steps for importing MBOX emails to Office 365 mailbox. However, this method will
- Import a single MBOX file at once.
- No filter options to import selective MBOX emails.
- If the MBOX file is corrupted, then you can’t import the file.
Directly Import MBOX to Office 365 with Attachments
Use the BLR MBOX converter to import MBOX files to your O365 account within a couple of moments. MBOX to PST converter tool is perfect for moving MBOX emails with attachments to Office 365 account without losing a single bit of file. You can download this tool on any Windows operating system without facing any kind of issues. To discover the complete capabilities of this tool, download the tool’s free demo version.
Conclusion
In this complete blog, users can learn the free methods or technical methods to import MBOX emails to an Office 365 account without facing trouble, and by following each step. For it to import MBOX emails to Office 365 accounts, users must install numerous email clients on a PC, which might take a while. Users can use the professional tool to convert or migrate MBOX emails to Office 365 accounts. To convert unlimited MBOX emails to Office 365, users need to purchase a complete edition of the BLR MBOX data converter tool from the official website.
