Royal Mail Delivery Offices Rossendale, Blackburn - Welcome to the directory of Rossendale Royal Mail Delivery Offices and royal mail sorting offices in Rossendale. It lists royal mail delivery offices and royal mail sorting offices who offer parcel delivery and mail delivery. Find business details, ratings and reviews of your local royal mail sorting office or royal mail delivery office in Rossendale, Blackburn and write your own review. Are you a royal mail sorting office in Rossendale? Why not advertise your parcel delivery business on the Rossendale Business Directory – IT'S FREE!