What is the best way to import MBOX emails into Office 365?

The best way to import MBOX emails into Office 365 is to use a reliable migration tool such as SysInfo MBOX Converter. It can directly import MBOX emails into Office 365 while preserving email content, attachments, folder hierarchy, and other mailbox data. To begin, add the MBOX files to the software, preview the mailbox data, select the required folders, and choose Office 365 as the destination. Enter the required Office 365 account credentials, apply filters such as date range or duplicate removal if needed, and start the migration. SysInfo MBOX Converter supports bulk MBOX migration, making it suitable for transferring emails from Thunderbird, Apple Mail, Google Takeout, and other MBOX-based clients to Office 365 efficiently.