If left mayonnaise jar out on table all night..should throw it away? (due to salmonella possibilty)?

If it was just bought from the store and not opened and you havent put it in the fridge and then left it out its fine but if you opened it and it was in the fridge you would need to throw it away. Storing food at its proper temp. will make your food last longer and its much safer. For the grocery stores store mayo and other condoments on the shelves with out using fridgeration so its safe if its not opened. Otherwise toss it.