I would like to mention that the whipersnapper delivery service is something that all the players can use in character and not need to wait for a GM response.  If your character hands off a letter or package for another player, that other player can presume that it arrived.  If it is for an GM NPC, it can be presumed to be delivered as well.  However, if we haven't acknowledged the delivery with the character, please send a PM.  We read all the posts but some things like that may be missed.