Royal Mail is to launch a campaign to celebrate the 50th anniversary of the postcode in the hope that it will stress the importance of using it. According to this article around a fifth of non business letters are sent without a full postcode. This is despite the fact that mail that includes a postcode is processed much more quickly as it can be sorted by machinery rather than by hand. At PC2Paper when we receive queries about undelivered letters we find that the majority of these have been incorrectly addressed or are missing a postcode so have not reached their destination. The message is clear, in order to help your letter reach the recipient use a full address and include a postcode.