Hey,
Thanks for reaching out to us!
Our ticketing system utilizes all the checkout/purchase features of the WooCommerce plugin. That being said, you should be able to use a plugin such as https://wordpress.org/plugins/woocommerce-mailchimp/ to get the functionality you’re looking for since it works with the main WooCommerce plugin. That being said, that is a third-party plugin and we’re unable to provide support for it’s functionality specifically.
Let me know if this helps. If you have any further questions, please don’t hesitate to ask.
Thanks!