How do I make a rigidbody bounce off a mesh collider?

Notice: All of the code I provide will be in C#. I'd prefer answers in C#, but Javascript should be fine as I'll probably be able to translate the given code into C#.

So here's what I've got right now:

The player's ship (which has a box collider attached). It is a non-kinematic rigidbody since it is controlled by the physics engine. So when the player presses the move forwards key:

 rigidbody.AddRelativeForce(-moveSpeed,0,0);

I also have an environment which has a mesh collider attached. What I want to do is make the player's ship bounce off the environment, but I'm not sure how to do this. I tried messing with a physics material a little bit, but couldn't figure anything out from just messing around with it, as my ship flew through my environment mesh regardless of what settings I had.

Also, when the ship collides, there are some other things I'd like to have happen (such as the ship taking damage and whatnot). Is there a function that I can use to do this? My efforts with OnCollisionEnter have been unsuccessful in the sense that I can't get the function to call, though I have gotten onTriggerEnter to call successfully.

Thanks in advance for the assistance!