A mail processing system has a conveyor system (12) with a first level (12a) and a second level (12b) and configured to convey mail containers. An elevator installation (10) is coupled to receive and output mail containers from and to the conveyor system (12), wherein the elevator installation (10) includes tablets (16) configured to move along a closed loop extending along first and second sides of the elevator installation (10) . On each side a predetermined number of tablets extends between a top end and a bottom end of the elevator installation (10). A carousel carrier (14) is coupled to receive and output mail containers from and to the elevator installation (10). The carousel carrier (14) has a vertical column of a predetermined number of platforms arranged between a top end and a bottom end of the carousel carrier (14), wherein the number of tablets is the same as the number of platforms.