The script will go a MBOX formatted file, put the date and time that the message was sent or received, the from address, to address, subject, the file that contains the mail entry, and the sha256 digest of the line entry in comma separated list for easy parsing. The output data can also be opened up using common spreadsheet applications (excel, calc, etc.).
These details are provided for information only. No information here is legal advice and should not be used as such.