The subject line of an email should make the reader want to open the email, and just as important, not deceive the reader into opening the email. Both of these rules are intentionally violated by marketers. In the first case, so many marketers think they are being smart to not tell the reader what their note is about, using some silly headline instead. How many times have you gotten an email with subjects like: Are you still up? (I may talk in my sleep, but I don’t read in my sleep. Of course, I am up.) Re: Hey (this actually is both silly and deceptive. It doesn’t encourage opening... [...]