Convert MBOX to OLM Free

https://medium.com/@amyblack2x/convert-mbox-to-olm-free-of-hassle-87b1ae58c6f4

You can convert MBOX to OLM with 'Mail Extractor Pro'. It is an Mac application that can convert your Thunderbird, Postbox, Apple Mail Archive and MBOX to PST file formats. As Mac outlook can import both PST and OLM, you can import PST instead of OLM. Try it today.