The Mail Room was located directly underneath the Post Office on the starboard side of the ship, on the second lowest deck, the Orlop Deck. This area was used as a mail storage place.
Sinking[]
Due to the location of the mailroom, and its position in the bow. It flooded within 5 minutes after the collision with the iceberg around 11:40 P.M, and the postal workers tried to save the bags of mail by taking them to the Post Office on G-Deck but they gave up once the room flooded completely and the Post Office itself was taking on water as well, just aroud 11:50 P.M.