Though I am unfamiliar with mushrooms in Australia, there are no known deadly toxic boletus. There are boletus that will make you sick. But nothing that will kill you. For a mushroom, that's pretty friendly in my book, as something like a destroying angel will liquify your liver in 3 days - no cure. Polypores are my favorite kind of mushrooms, as they are among the most forgiving and safest should you end up making a misidentification.