Creating a record of participants

I'm pretty new to Storyline and really enjoying developing with it, but have a question for a project I'm doing. I need to be able to have a record of people who go through the training module I've built - we can do this in really any way, but we'd like to do it outside of our LMS if possible. The ideal option would be a CSV output of email addresses that are entered into the "Thank you" slide or something like that, but if that's not feasible or there's a better way, I'm open to other options.