It sounds like you’ve just encountered a common mechanic in farming simulation games (like Story of Seasons , Harvest Moon , or Stardew Valley style RPGs) where the mailbox requires a specific code or password to unlock rewards, story progression, or secret items.
: Once a correct password is accepted, you will receive a notification of the items found. You can then bring the contents to Lorn for additional quest progress or keep them for your farm. Updated Password List (May 2026) farm rpg mailbox passwords updated