Allow ham to sit at room temperature for 30 minutes prior to cooking.
Preheat oven to 325°F. Place ham cut-side down in a roasting pan and bake for 1 hour and 10 minutes.
While the ham is cooking, make the glaze by combining mango, vinegar, honey, mustard, garlic and pepper in a blender. Puree until smooth.
Brush the glaze over the entire ham, return to the oven, and continue to cook for another 20 minutes, until the glaze is set and the internal temperature of the ham reaches 140°F. Serve.