I don't remember them anymore cause all my boletes are bitter, nasty ones, but there are a few very easy to identify traits that rule out all the poisonous ones. They also rule out some edible ones, but they're good beginner rules. I'll see if I can find them later. Blue staining was in there, bright yellow or orange caps, I think. And one or two other things. Apart from those, you just have to taste and see if it's any good. It might be like mine, fully edible, but not at all pleasant.
You might want to check for maggots
. Any mushrooms that big at my place are fully infested anyway.