@xssfox sounds like Australia did postal codes wrong.
@elmuerte my mail gets routed to it's destination so it seems to work
@xssfox having have to deal with postal code based routing I know that it can work. But my code could have been so much more simpler. (Didn't deal with .au postal codes but with .uk)
@elmuerte my mail gets routed to it's destination so it seems to work