Emailing alum interviewer -- Do I always have to say "Dear Mrs. X?"

<p>I would much rather say Hi Mrs. X. It is more natural...</p>

<p>Has she already e-mailed you? I’d do whatever she did. Otherwise Hi Ms. X is fine.</p>

<p>Ms. X is probably the safest bet. Better safe than sorry. But if she emailed you first, check her email signature. Unless she signed off using just her first name, you should stick to Ms. X</p>

<p>Oops, too late lol</p>

<p>I kept using “dear” instead of “hi”</p>

<p>CC’er’s how weird do you think this alum thinks I am now? :P</p>