Dimensional Mailing Service (DMS)

Tired of his teaches sendings through birds and frustrated by the inability to get in contact with people Theris brainstormed this, based off his research from Sending spells, Mirrors of Transpondence, and his own skills in planer magic he's come up with this spell. 

You summon a small Elemental to a spot within range. You may then give the elemental a Letter or package weighing less than a pound. You can then name a living creature you have met or seen at least once before, or any creature for which you possess a body part, lock of hair, clipping from a nail, or similar portion of the creature’s body. In a flash the elemental will disappear, then reappear adjacent to the target creature.