Date
Dear Applicant:
In the course of filling the xyz position, we reviewed scores
of applicants’ credentials. The process was long, and one we
took very seriously. Often candidates with impressive credentials
are not suitable for one of several reasons, including a
lack of relevant experience or inadequate job knowledge,
for example.
Although I’m unable to offer you a job at this time, I want
to thank you for taking the time to apply for the position.