Autoresponder for Wordpress that they get access to when they sign up for course?

I would love to have an autoresponder plugin where I can create emails that are scheduled to go out (in intervals I choose) after my clients have signed up for a course. Is this possible? I know I can just use Mailchimp, but I'm just not that into Mailchimp.

Would be awesome if this could be integrated with WooCommerce, which I'm using.