Mailbox - In-World Parcel Delivery

Mailbox adds a physical, immersive mail system to Minecraft. Players craft and place mailboxes (special chests), assign each one a unique address, and send items to other players by “mailing” them to that address.

Deliveries aren’t instant: travel time is calculated from the distance between mailboxes and your configured delivery speed, making the system feel grounded and perfect for survival, SMP, and roleplay servers. Optional notifications can alert recipients when items are on the way and when they arrive, and mailboxes can be locked while receiving deliveries to prevent interference.

Mailbox is persistent across restarts, supports multiple mailboxes per player, and includes commands for listing mailboxes, checking available space, and unlocking a mailbox if needed.