Reception venues on Cape Cod that allow outside caterers?

I found an amazing caterer and would like to use them for our wedding reception but every place I have looked at will only use their own.Reception venues on Cape Cod that allow outside caterers?
Try looking for houses that rent out for receptions or halls with a large outside area. I see houses here and there that have tents set up - you may be able to get some names from party supply houses that deal in tent rentals. If there are alot of people coming from a distance you may also be able to have it in a hotel and have those folks stay there... Good Luck!