The correct answer is a combination of the first two: Before writing the body, it's a summary, so you should have an idea what you're going to say before you start typing. Think of it as a requirements document for the rest of the email.

A good subject line also gives the reader a reason to read it. Don't assume that your email is going to get read just because you send it.

xoxo,
Andy

In reply to Re: Email subject lines should be written: by petdance
in thread Email subject lines should be written: by chacham

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