You've just finished a job interview,and you know that you're not going to get the job.So,don't worry about sending a follow-up message to the interviewer.

Sending a follow-up message to the interviewer can leave a positive impression and show gratitude for the opportunity, regardless of whether or not you got the job. It is always a good idea to send a thank you note or email after an interview, even if you don't think you'll get the position.