Thank you notes should be emailed or handwritten to all employers with whom you have had contact, especially during OCI. They should be emailed or mailed or emailed within 24 hours of your interview. A thank you letter indicates that you are interested in the employer, and they may help influence the employer’s continued interest in you during their screening process. It is also a way of maintaining contact with the interviewer following the interview, even if you don’t get the job! Read on for more tips.