What is a polite follow up email after a phone interview?
It is difficult for us to judge interviewers and we appreciate all the hard work you put into your application. Unfortunately, we selected another candidate who was more suitable for the job. Thanks again for your application and best of luck in your future endeavors.
Once you've thanked the other person for their time, it's time to reaffirm your interest. Mention the job and company and why you are excited about the opportunity. Be sure to include the interview and the exact job title. If you're communicating with a recruiter, they may be working on multiple candidates and openings at the same time.
You should write a brief summary of your experience, background and post-approval fit with the position.