The EML2MSG conversion only accepts DOS (crlf) files as input, and fails with the following error message if UNIX (lf) EML files are used.
Error convert C:\docs\2021\03\27891598.eml: Operation aborted (Exception from HRESULT: 0x80004004 (E_ABORT))
I haven't decided to purchase yet, and the demo has timed out so I can't do further testing.