I sent my friend 4,350 gold in the mail and he never received. I double checked the recipient before sending it to ensure that I was sending it to the correct person. We are in the same guild with Guild Mail perk so it should have arrived instantly but even after an hour it has not arrived. While 4.3k gold is not a huge sum, I would rather have it than not. The sending character was this one, Beercules, and the intended recipient was Kodester, a gnome warlock also in Nocturnal.