If you're looking for research on a particular topic, this is the place to go, PST to MBOX Converter Online so that name is eSoftTools PST to MBOX Converter Software. It works in a few clear and easy steps. During the PST to MBOX conversion, email properties are maintained. To convert required emails from a PST file, the user simply needs to select the mail filtering option and choose the from and to dates. All consumers have access to a free trial edition, which allows them to convert up to 25 email items per folder.