In a small saucepan over medium heat; Cook pineapple preserves 6-8 minutes while stirring frequently.
Add honey, Butter and mustard and Cook 5-8 minutes while constantly stirring. Once the glaze has thickened to a syrup consistency, remove from heat and set aside until ham is ready to be glazed.
Place ham into a large baking dish and cover with foil. Cook according to package instructions (typically 325°F for 10-12 minutes per pound) Prepare glaze while ham is in the oven. Glaze ham 20 minutes before cooking is complete.