Whilst I realize ZOS can't do anything about the messaging system on Xbox one, there is a very real issue on console.
Every time I 1vX or 1v1 on Haderus with my Mag Sorc (shield stack, I know save rage for later) I get Messages that I call rage Mail begging for 1v1s despite me just 1vXing them, calling me trash, even going as far as telling me to die or kill myself. Tragic thing is the majority who play this game are adults, not children.