Add email engagements to 'in-app' audience rules

It would be amazing if we could add the email engagements to the audience rules -


it would allow me to send a follow on email x amount of days later, an example I have is:


Day 1 - user logs on for the first time and receives a welcome/acknowledgement email

Day 7 - user receives a re-engagement email highlighting features


it would hopefully help users re-engage with our product!

@Jack-Occleshaw awesome, thank you for the feedback.