The mailbox one is bugged for me, all I have in the mailbox is the riding letter. I've clicked on all available NPC's and there is no quest to receive. I've done kill scarlet, gather arrows, win 5 duels and the quest for the mount. It seems that some people get the next quest and some people don't. Im not the only one stuck on lvl 61 in the starting zone... I made three new DK's and still can't get the quest. And also nothing in the mailbox except the riding letter.