I propose using the Mailvita PST to MBOX Converter for Mac Tool if you want to convert your PST file to MBOX format and guarantee that it will be fully compatible with any third-party utility. It’s straightforward and convenient to use this tool. Any type of PST file can be converted with just one or two clicks. It supports every version upgrade and has all the most recent versions. Several email programs are supported, including Thunderbird, Apple Mail, Eudora, Entourage, Opera Mail, and more. Versions of Microsoft Outlook 2003, 2007, 2010, 2013, 2016, and 2019 are all compatible with it. In order to upload PST files rapidly, this tool scans them in both ANSI and Unicode forms. You can use this application to obtain precise results that are free of errors. The utility’s several advanced features make performing your conversion easy and seamless. You can test this tool on any latest version of Outlook, Windows, and Mac OS X 11, including 10.10, 10.9, 10.8, and 10.7. Download the software’s free trial versions.