The tool is nice but unfortunately it would miss the key spam score components tied to IP reputation. AWL (auto-white-list) is the most obvious rule, but many

The tool is nice but unfortunately it would miss the key spam score components tied to IP reputation. AWL (auto-white-list) is the most obvious rule, but many actual Spam Assassin installs include plugins that rely on all kinds of 3rd party service. Is the IP you are checking against the same as IP used to send your transactional emails?