Funky routing of mail on non-standard ports
For a while now I've been providing a secondary mail service for a friend, using my home server connected to BigPond Cable. It all works rather well, but Telstra have recently announced that they will be blocking outbound port 25 to mitigate the steaming hordes of spam monkeys they've attracted over the years. For one I applaud Telstra's action, albeit years late - at least they're making an effort now. But since it requires some reconfiguration to handle this I figured I'd throw it up here so that others in a similar situation can use this method to continue providing secondary mail services.