HTTP Attacks - Skills Assessment

Need some help with the HTTP Attacks - Skills Assessment. After massive headaches, I finally believe I have the proper attack chain – I’m submitting my post request (with malicious content), NOT getting a WAF error, AM getting a seemingly proper return (just as if I were to submit content which was NOT malicious)… but NOT getting the email… Please help. Thx.

EDIT: Solved. SWEAR I had tried the solution before, but clearly did something wrong as a clear-mind managed to get it.