<p>I am writing a short thank you to my interviewer (to his email address) following our interview, however I was wondering how to address the letter?</p>
<p>That is, by his first name such as "Dear Fred" (for example), or formally by his last name, ie. "Dear Mr Smith". Or perhaps "To ____" ?</p>
<p>My interviewer is a fairly young (mid twenties) recent graduate, if that provides any context. </p>
<p>Many thanks in advance for the advice!</p>
<p>I would address him by his last name in the form: “Dear Mr. ________”</p>
<p>My interviewers usually give their first names, but I always call them by their last. You can never be too formal. Well, I mean, if you come to your interview in traditional white tie and speak in the acrolect, maybe then, but generally, I think it’s a safer way to go than than being casual.</p>
<p>^Yes, I agree. Many interviewers choose to simply call themselves “Joe” despite their impressive, highly-educated backgrounds but a formal address is usually the most socially acceptable.</p>