The equivalent to the one way bus in Rhino Service Bus is what we in NServiceBus call "Send only mode". In short you would use this in endpoints who's only purpose is sending messages, websites are often a good example of send only endpoints. I've blogged about it a while back but the syntax has changed slightly since then. This time we'll take closer look at the code needed to start in send only mode.
The only configuration needed when running in this mode is the destination of the messages you're sending, you can do this either inline or through configuration.
A working sample can be found here.
That's really all there is to it.