I need a reliable messaging solution. It looks like RabbitMQ would address the needs of my application. However, my environment is not well suited to deploying Erlang and Mnesia on a server. It is an enterprise environment and it is a huge battle of red tape to get "non-standard" pieces like that deployed. I would prefer to find a reliable messaging framework similar to RabbitMQ, but built on .NET. Storing messages in Oracle and/or SQL Server would be a bonus. Anything like that out there?
I'm aware of NServiceBus, but I don't think this is focused on reliable messaging as much as RabbitMQ is.