Both the Post Office look and Processes its processes have been updated during the large city update in June 2021

Post Offices on a the map will trade Mail [[File:icon mail.png|16px]] between themthemselves, or rather between the stations having a Post Office in their catchment zones. Delivery of the mail [[File:icon mail.png|16px]] will earn Money Tokens [[File:token money.png|16px]]. Moreover, mail delivery contributes to the town growth. Post Offices only appear in [[Ages#EraII|'''Era II''']], the Steam Era. During the transition between [[Ages#EraI|Era I]] and [[Ages#EraII|Era II]], post offices Post Offices will appear in each towns across the map. Post Office has fixed reserved size of 2x1 squares even if at level 1 the actual building is only 1x1.

Mail delivery follows the same rules as passenger delivery, depending on the '''Passenger Destination''' parameter in [[Game Settings#Advanced|'''Game Settings''']]. The transfer between different trucks and trains happens automatically similar similarly to tranfer transfer of the passengers. '''Do not use Full load / Unload commands for mail.'''