In-Game Mail
Seems a serious issue to me.
It is still happening to him. Also seems that it is being ignored if this thread is anything to go by.
Is his inbox full? If he has 10 items in his inbox, that is full and he’ll have to delete mail before he can receive additional mail that is probably waiting in the queue.
Saraneth, have your brother delete everything from his inbox. (I mean everything). I had this issue with a friend of mine who was unable to receive mail from me (and only me). His inbox said 9/10 and of those 9 messages a couple were from me. We were doing this so we could have a nice and easy spot to hit “reply” as we are frequently exchanging stuff.
One night we were extremely frustrated that we couldn’t swap materials and he started cleaning out his inbox. As soon as he did, all my mail for the past week and a half started pouring in. Apparently, one of my old messages had “held up” all the rest of my mail.