To import MBOX to Outlook PST format, you can use the Advik MBOX to PST Converter Tool. It’s one of the best tools for converting MBOX files to PST quickly and easily—even with attachments.
This tool is simple enough for both beginners and advanced users. It supports MBOX files from popular email clients like Thunderbird, SeaMonkey, Postbox, Apple Mail, PocoMail, Eudora, and more.
You can run this tool on any version of Windows, as it works with all Windows operating systems. Plus, there’s a free trial version available so you can try it before buying.