There is a web interface to this msg parser application to allow easy upload of individual .msg files, or many files compressed in a tar archive.
Clone this repo, cd to the root of this project's directory, and run:
docker-compose up
The required images should be pulled from Docker Hub, so if you run into issues make sure to run docker login.
Once docker-compose is running, visit localhost in your browser, where you can upload files, and see the list of messages that were parsed from input.