The best tool to convert MBOX file to PST format, which I tried CubexSoft MBOX to PST Converter. It is dedicated tool convert MBOX file to PST format. This tool ensure all data integrity, email formatting, preserving attachments and Meta data throughout the conversion process. Moreover, it is capable to convert MBOX file of 30+ email clients including Yahoo Mail, Apple Mail, Mozilla Thunderbird, Netscape and many more. Users can seamlessly install and run this tool on any older or new editions of Windows Operating Systems and Mac. Moreover, it offers a free trial version to all users without investing.