Invio, ricezione e organizzazione della posta elettronica in Outlook.com
Hi. I'm Brian and I'll try to help.
My solution to this was to visit https://outlook.live.com/mail/0/options/mail/junkEmail and choose the Strict option. All mail not from a safe sender is delivered to the Junk Email folder.
By the way, "reporting" a junk message doesn't really have an effect.