This follow-up letter can serve to confirm that the original rejection letter was received by a job applicant.
Free to download and print.
Dear {Name},
This letter is to follow-up on my phone call in which I let you know that we have decided to go with another candidate for the position of {job}.
Our team was quite impressed with the breadth of your experience in {other field} as well as your keen interest in {our field}. I would like to suggest that you pursue further study in {area} and perhaps also consider applying for an internship at {our company/other company}.
It was a pleasure to get to know you. We all wish you the best as you transition to a career in {field}.
Sincerely,
{Name}