Players can't interact with things within spawn protection.

[xArches]

Players in spawn can't : eat cake, open doors/trap doors, open interfaces (furnaces, crafting tables, enchantment tables, or chests), and can't use levers but can use pressure plates. Using any of these spams a player with "This is protected."

[Alexandra Stehr]

        if(     bt == BlockType.Furnace
                ||  bt == BlockType.Cake
                ||  bt == BlockType.Workbench
                ||  bt == BlockType.EnchantmentTable
                ||  bt == BlockType.Chest
                ||  bt == BlockType.EnderChest
                ||  bt == BlockType.Lever
                ||  bt == BlockType.WoodenDoor
                ||  bt == BlockType.WoodenButton
                ||  bt == BlockType.BurningFurnace
                ||  bt == BlockType.StoneButton

Missed anything important?

[Alexandra Stehr]

Reopen if you miss anything. :)