Why is it important to send a follow-up message after an interview?

What will be an ideal response?

Send a follow-up message within two days of the interview, even if you feel you have little chance of getting the job. These messages are often referred to as "thank-you notes," but they give you an important opportunity to go beyond merely expressing your appreciation. You can use the message to reinforce the reasons you are a good choice for the position, modify any answers you gave during the interview if you realize you made a mistake or have changed your mind, and respond to any negatives that might have arisen in the interview. Email is usually acceptable for follow-up messages, unless the interviewer has asked you to use other media.