Thank you for your interest in <field:company>.
After careful consideration of all applicants, we regret to inform you that we have offered the position to another candidate who was more qualified for the position.
Our decision was a very difficult one and in no way represents a negative evaluation of your personal capabilities, but rather reflects our desire to hire the candidate whose qualifications most closely fit our requirements. Enclosed please find your original application documents.
We wish you the best of luck in your future career plans.