Hello, According to me, you should try the manual process once before spending money, maybe you get the exact result without spending money. And if you don't get the right result then you can try third-party software to convert MBOX file to PST file format.
I have written a blog to solve your problem, where I have described the manual process step by step as well as also informed about a unique MBOX to PST migration tool. So to import MBOX file in Outlook environment follow this blog link:-
I am here with one of the most advance and trustable utility that will easily perform the conversion without hassle and in bulk. Run smoothly on all version of Windows and Mac OS. The free demo version is also available so that the user can have an idea about the utility before buying it. The MBXO to PST converter will perform conversion with attachment to various other file formats.
To open the Mbox file into outlook pst format, firstly you need to convert the mbox file into outlook pst. Steps to Convert MBOX to PST Manually Step 1. Open Microsoft Outlook and go to File. Step 2. Click on Import and Export to open the Import/Export Wizard. Step 3. Click on Import from another program or file -> Next.
Step 4. Click on Personal Folder File (.pst) -> Next.
Step 5. Click on the Browse option to locate or store the converted PST file.
Step 6. Click Next -> Finish.
Professional Method: As the manual method has some limitations like time-consuming, requires technical proficiency, and fails during large data files conversion, etc. At that time a professional tool requires. So, You can use Stellar Converter for MBOX. It converts Single or multiple MBOX files in one go. Supports Conversion for 17 MBOX based Email Clients and Compatible with Microsoft Outlook 2019, 2016, 2013, 2010, 2007, and 2003.