If you’re looking to import MBOX file to Office 365, there are several methods you can use to perform this task efficiently and seamlessly. One of the most popular options is using a third-party tool like MailConverterTools MBOX Converter Tool, which provides a quick and user-friendly solution for transferring all your emails, contacts, and attachments from MBOX files to the Office 365. Additionally, you’ve the option to eliminate all identical or similar emails during the migration to prevent duplicate emails. Furthermore, it has multiple saving options enabling you to convert MBOX files into PST, PDF, CSV, EML, MSG, etc while preserving folder hierarchy.