If you are looking for a reliable MSG converter for Mac, Aryson MSG Converter is an option to consider for converting Outlook MSG files into commonly used formats. Aryson lists Mac support for its MSG-to-PDF conversion functionality, while its MSG Converter supports formats such as PST, MBOX, EML, EMLX, PDF, HTML, and MHT.

It can also be useful when working with a large number of MSG files because it provides batch conversion, allowing multiple files to be processed together. For Mac users, Aryson also provides dedicated Mac-compatible email conversion utilities, and its official site provides Mac download options for supported products.

Download from the official site: Aryson MSG Converter Tool