Not sure how to complete SET academy

Ive got the task to "Find Sunshade Corp's mail server" and I did that by pulling the companies URL from an active directory file then running sfuzzer against that URL. Apparently that didnt count and the briefing isnt clear exactly what and or how it expects me to do this.

EDIT: Apparently sfuzzer has to finish its scan.

 

Hint: Or you could try to use other familiar tools to find a server within a corps network ;-)

 

you must use " the social engineering tollkit... why you dont read the instructions?