Looks like this class is my dream come true; but I don't see any documentation about how to extract all attachments from (example) all.mbox to a folder and get all attachments saved with their original name.
Larry - 2020-04-04 02:26:54 - In reply to message 1 from Larry
I tried this with no success
/opt/plesk/php/7.1/bin/php test_message_decoder.php all.mbox
MIME message decoding error: unexpected decoded message part type MessageStart in state 5 at position -1