Opera Mail to Office 365 Migration: Complete Tutorial for 2025

Ritu Roy | email conversion how to mac os MBOX software technology | 4 minutes read | Modified on: 21-08-2025
export opera mail to microsoft 365

Summary: Are you searching for a reliable solution to export Opera Mail to Microsoft Office 365 account? Or wondering how to transfer Opera Mail MBS file emails directly to Office 365? If so, your search ends here. In this article, we’ll walk you through the complete process of converting and migrating Opera Mail data to Office 365 with ease. Keep reading to learn the step-by-step method for a smooth and secure migration.

Opera Mail is a popular desktop-based email client that was once part of the Opera Internet Suite. It enables users to manage emails from multiple accounts using standard email protocols such as IMAP, POP3, and SMTP for sending and receiving messages. While it served as a reliable solution for many, Opera Mail requires a local system to access and manage mailbox items, which limits flexibility.

On the other hand, Microsoft Office 365 (also known as Microsoft 365) is a cloud-based email and productivity platform that allows users to access their emails and data anytime, anywhere, through a web browser, on desktop, mobile, or tablet devices. With its 24/7 availability and secure cloud infrastructure, Office 365 provides seamless accessibility without altering your original mailbox content.

Why Users Want to Export Opera Mail to Office 365 Account?

Microsoft Office 365 is the cloud-based version of the traditional Microsoft Office suite. It operates on a subscription model and offers seamless integration with powerful applications like Outlook, Word, Excel, PowerPoint, Skype, SharePoint, and OneDrive.

Here are the main reasons users prefer to migrate from Opera Mail to Office 365:

  • Anywhere, Anytime Access: Office 365 is cloud-based, meaning users can access their emails and data from any device, desktop, mobile, or tablet with just an internet connection.
  • No Dependency on Local Systems: Unlike Opera Mail, which is desktop-based and requires installation, Office 365 is accessible via a web browser, making it more flexible and user-friendly.
  • Data Security and Compliance: Office 365 includes built-in security, data loss prevention, and compliance features, which are essential for business users.
  • Collaboration Tools: With apps like Teams, SharePoint, and OneDrive, users can collaborate in real-time, enhancing productivity and communication.
  • Automatic Updates and Maintenance: Users always have access to the latest features and security patches without needing manual upgrades.

Automated Software to Export Opera Mail to Office 365 Account

If you’re looking for a reliable and secure method to export Opera Mail emails to your Office 365 account, the MacArmy MBOX Converter is an excellent choice. Since Opera Mail stores its mailbox data in .mbs files (a variation of the MBOX format), this tool is fully capable of handling the conversion process seamlessly.  The software offers two convenient options, “Add Files” and “Add Folders”, allowing users to add single or multiple MBOX/MBS files for migration.

This tool is especially useful for users who want to move from a desktop-based email client (like Opera Mail) to a more modern, cloud-based platform (like Office 365), while keeping their emails, folders, and attachments completely intact.

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Import Opera Mail Email to Outlook

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Check Out the Opera Mail to Microsoft 365 Migrator’s Primary Features

The Opera to Office 365 Migrator is more than just a basic email converter, it’s a robust, feature-rich solution designed to handle professional email migrations with zero data loss, complete control, and maximum efficiency.

This powerful tool can import MBOX data files created by almost any MBOX-compatible email application, including: Mozilla Thunderbird, Apple Mail, Google Takeout, Entourage, Eudora, etc.

There’s no need for any additional importing or exporting steps, the MBOX to Office 365 Converter tool enables direct upload of your data, streamlining the entire migration process.

The software is capable of maintaining all original email elements, including headers, body content, and folder structure, intact throughout the migration process.

To evaluate the software’s functionality, you can use the free demo version, which allows you to download and import up to 25 emails from each MBOX folder.

The software includes a powerful batch mode feature, enabling users to import multiple .mbox files into their Office 365 account in a single operation. Most importantly, this batch import process ensures zero data loss, preserving every detail of your emails.

This tool is easy to install and operate on any version of macOS, including all previous releases, ensuring seamless compatibility across Mac systems.

Steps to Import Opera Mail to Microsoft 365 with Ease

Follow these simple steps to migrate your Opera Mail emails to your Microsoft 365 account using the Opera Mail to Office3 65 Tool:

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  1. Download and Install the MBOX File Converter Tool on your computer.
  2. Click the Add File button to upload one or multiple MBOX files from your local drive.
  3. Select the mailbox folders you want to preview or migrate, then click Next.
  4. From the dropdown menu, choose Office 365 as the output/save format.
  5. Enter your Microsoft 365 credentials to authenticate your account.
  6. Use the built-in options to select the destination folder where you want to save or migrate your emails.
  7. Finally, click Export to start the migration process.

Conclusion

In this article, we explored the key steps for importing Opera Mail MBOX files to Microsoft 365 on macOS. While the manual migration process can be complex and time-consuming, especially for large archives, it often involves multiple intricate steps that may overwhelm users.

For those prioritizing speed, accuracy, data integrity, and ease of use, the Opera Mail to Microsoft 365 Migrator Tool emerges as the ideal solution. It simplifies the entire migration process, making it perfect for both individual users and businesses seeking a reliable, hassle-free way to move their email data without the need for technical expertise.