Are you capable to convert PST files into MBOX files for free? A lot of people can choose the free option first and then do the manual way. The manual method is quite hard and takes a long time. Users can only turn one PST file into an MBOX file. The third-party app I recommend is called TrustVare PST to MBOX Converter Tool. This software is quick and simple to use. Users can convert the size of PST files to MBOX in only a few seconds. The software lets you directly import PST files into Thunderbird. It can also convert the PST file to an MBOX format that works with all email clients, such Thunderbird, Apple Mail, Eudora, SeaMonkey, and others. Downloading the free sample version of the software is easy. Works with all versions of MS Outlook and Windows OS.

Visit here: https://www.trustvare.com/pst/mbox/