Top ways to migrate Outlook PST mailboxes into MBOX

In case you are searching for a reliable solution to migrate Outlook PST mailboxes into MBOX then you should try a professional software approach to execute this task. In this regard, I have used the PST to MBOX Converter that helped me to convert PST to MBOX and other file formats like PDF,  HTML, EMLX, TXT, MSG, EML, CSV, OLM, etc. For an evaluation of this reliable utility, you can use its free trial version, which allows you to convert 50 emails per folder.