Many users still have emails saved in MBOX format from clients like Thunderbird or Apple Mail. When moving to Microsoft 365 in 2026, these files cannot be imported directly, which makes migration a challenge.

The <strong data-start="368" data-end="412">Shoviv MBOX to Office 365 Migration Tool offers an easy way to move MBOX files into Microsoft 365 mailboxes. It supports large MBOX files and keeps the original folder structure, email attachments, and message details intact. Users can migrate multiple mailboxes at once and preview emails before starting the export. The tool also avoids duplicate emails by using incremental migration. A free trial is available with a limit of 50 emails per folder.

<p data-start="825" data-end="1065">To migrate, install the tool, add MBOX files, choose Office 365 as the destination, sign in with Microsoft 365 credentials, and start the export. After migration, emails appear in Microsoft 365 with their original formatting and properties.

<p data-start="825" data-end="1065">Get the Software: MBOX to Microsoft 365