If you receive scam mail through the post especially fraudulent items then please send them to FREEPOST SCAM MAIL.

For example people have received scam mail at this time of year before, asking for delivery fees to be sent in order to receive packages.

The means of reporting such attempts to Royal Mail was mentioned on Money Box  so I thought it worth passing on. On the program they suggested simply forwarding the item so I guess the covering letter is optional.

“If you have received items of mail you believe to be from fraudsters please send them to us [Royal Mail], with a covering letter to: FREEPOST SCAM MAIL”