  The Royal Mail are very PC. It has alot of Ethnics, and they are allowed to decide whether they distribute political material or not, on the basis of whether it offends them.  I would say as much, and as many as possible, but the Royal Mail could be a waste of money. Better to leaflet than post, but alot more work.  You don't understand, when a party stands in x amount of seats(something like 105) they get FREE postage and the Royal Mail by law have to get them out. If staff refuse to deliver them (using that moral thing in their contract)the Royal Mail have to pay third parties to deliver them.