This project aims to provide for a safe, complete, and cleanly written/configurable way to convert mail archives (like mailing lists) to a simplified, but still correct, structured output in the form of JSON (could be changed to other formats).
Care has been taken to allow it to work on huge archives (although a recent Perl is needed), and to index the whole archive so as to clean up In-Reply-To headers and provide for forward references ("replies").