Report Message add-in

Hi

Does anyone know if there is a way to unblock an email address again that was reported by a user as a phishing email? From what i can see, when a user reports an email as phishing it moves the email to the deleted items witch is perfect but i can't see where it adds the email as blocked. It is not listed under the blocked address list under the junk emails. I am just worried that someone will report the wrong email as phishing and then permanently block that email with no way to unblock it again. 

the only way i could potentially fix it again was by manually adding the email to the users approved senders. was hoping there is another way to just unblock it again