Who will receive emails from Cortex? RS Support May 26, 2017 19:13 Updated Follow Cortex uses a two basic criteria as a universal filter for sends: Cortex will only send to subscribed users Cortex will only send to accounts more than one day old Related articles Is it possible for a user to exist in multiple stages at any given moment? How often will a user get an email? How to upload Mailchimp Users List How do I only let certain users into Cortex? Comments 0 comments Please sign in to leave a comment.