This might be an incredibly unsexy solution, but you could create the same smart campaign 4 times and just run them at different intervals.
(just realized my first solution likely...
In the setup step - did you select the emails that you want reporting for? (sorry, can't see the setup from that screenshot). It won't automatically show you anything sent - even i...
I'm actually in the same boat. Our Go-To-Webinar confirmation replies are being flagged as 554, but they're all sending from the exact same Marketo account that sent the email invi...