Mailbox suggestion for anti gold sell

Hi, I’ve just received another in game mail from someone advertising about selling gold. My suggestion is to add a way to report people sending you mail as there is no such feature. Anyone who whispers me or spams in chat I try to report if I notice, but for the mail system there is no feature.
I’m assuming they are advertising in this way because they know there is no report feature so they probably feel it’s a safer way to advertise. Btw the person who sent me the ingame mail was called Kugagyome, felt I should include their name since I can’t report them.