Nipitphon Na Chiangmai / EyeEm via Getty Images What you write in your email subject line may be the first words a recruiter or potential colleague will read about you, and you want those words to get your email opened. You definitely don’t want them to be the reason your message ends up ignored. A winning email subject line will help get you the response you want. But Ashley Watkins, a job search coach with corporate recruiting experience, said she’s received CVs with no subject line or even no message in the email body, and she calls that a big mistake.