Post Box is a Production Building available in 
Empire of the Skies DLC and can be built in the Old World (and Cape Trelawney) and the New World. It is a part of the Postal Service system and produces 
Local Mail based on the number of residents living within the post box's radius.
Productivity[]
The productivity and production rate of post boxes are based on the number of residents living within the building's radius: 500 population corresponds to 100% productivity and to the production rate of 1.33 t/min. The highest possible productivity is 3100%, reached at 15500 residents within the radius. Additionally, post boxes increase the island's storage capacity for mail by 15 tons.
The radius of a Post Box cannot overlap with radiuses of Post Offices and other Post Boxes.
Items[]
Some items when equipped in town halls can have an impact on post boxes.
Town hall items[]
 New World Science ReporterEpic DLC Required
Land of Lions Empire of the Skies | ||
|---|---|---|
| A highly respected scientific authority, apart from that one article on the medicinal benefits of ingesting mashed parrot. | ||
 Equipped in Town HallAffects All New World post offices and post boxes  Post Office Post Box |
Effects Extra Goods Occasionally produces extra  New World Reports every 3rd cycle |
Expedition Bonus Diplomacy: +15 |
