Sir – John Graham’s comments about the hazards of letterboxes ( Letters, June 18) are very true indeed. During the electoral campaigns of 2005 I injured a finger when delivering leaflets.

So, I later learnt, did Andrew Smith, our local MP, who had to go to A&E with his injury. I contacted Mr Smith and expressed my concerns about the dangers that unsuitable letterboxes presented for postmen. He did pursue the matter at some length, but unfortunately the conclusion was that although there are guidelines for builders regarding what letterboxes are preferable, there is no legislation to oblige such letterboxes to be fitted. Such legislation, I think, is sorely needed.

Marilyn Cox, Oxford