Its definatley illegal to post drugs from Australia to anywhere in the world.The sentence would depend on alot of different things like the amount.Whats a small amount ? I have posted small amounts at different times to family or whatever i just made sure i dropped it in the post box myself and had no return address on it so i couldnt be traced in any way.And if you drop it in a post box make sure that you have the right amount of stamps for the dimensions or it will be taken back to the post office.