Our drip schedule feature allows you to release your content to students over time.
Right now, emails are not automatically sent to students upon the release of content (we are planning to introduce that in the future though!)
For the meantime, a great option is to switch weekly reminder emails on for your site from the Notifications page of your admin dashboard - these are sent out every Monday to any students with new/incomplete course content.
Or, if you'd like to set some emails up to mirror your drip schedule, then you are able to do that in any email marketing software (if you're not already using one, check out MailChimp or ConvertKit).
All you need to do is set up a series of emails scheduled to match your drip schedule.
You can then link your Thinkific site to the mailing list for that email schedule, so that any signups to your course are automatically added to the list. (Depending on which program you're using, it could either be handled via direct integration or Zapier).