It's the most useful portable tool I've ever seen. Transparent and gentle approaches are used eSoftTools PST to MBOX Converter Software is its name. It's the most vital tool I've ever encountered. The measures are simple and easy to follow. Until beginning the conversion process, it displays a live preview of the PST file features. For both new users, a trial version is available here. In the trial version, you can convert up to 25 email items per folder for free
Visit here:- Convert PST File to MBOX File