Rejection letters have lost their sting since I got a job, but I must nevertheless say that I’m a bit offended when an institution can’t even bother to proof-read its notices:
Dear Dr. Farley,
I am writing to let you know that the International Relations faculty position for which you applied has been filled. We had an excellent pool of candidates, so the selection process was very competitive.
With appreciation for your interest in the University of XXX and best wishess for your future success, I am,