This is a totally reasonable, fair-minded, and simultaneously terrible idea. Just like when you turn someone down for a date, or break up with someone, anythin

This is a totally reasonable, fair-minded, and simultaneously terrible idea. Just like when you turn someone down for a date, or break up with someone, anything more than "this just isn't the right thing for me, right now, but I wish you well" is often seen as an invitation for all sorts of exhausting pain that benefits no one. And in the case of employment rejections, the potential legal issues are just overwhelming. Thank them for their time, wish them well, and walk away. Candidates, like suitors, can get advice, feedback, and consolation from friends, coworkers, and peers. As much as it might seem "nice" to do more, it really isn't. Not for either party. EDIT: I do strongly support a personal note saying the above, and of course believe that a prompt response after the interviews is an absolute requirement for professional courtesy.