What actually makes someone open an email?

What actually makes someone open an email?

One reliable trigger is the curiosity gap: hinting at something useful without fully revealing it, so the only way to satisfy the itch is to open. It's not clickbait if the email truly delivers the answer.

— Step 1: Take your email's main point and turn it into an unfinished thought. "The one welcome-email mistake I made for a year."
— Step 2: ✅ Make sure the email pays off the promise immediately. Curiosity that leads to nothing teaches people to ignore you.
— Step 3: Keep it under about 40 characters so phones show the whole thing.

Why it matters: honest curiosity raises opens without burning trust, while fake hype quietly trains people to stop opening.

Homework: rewrite your last subject line to leave one thing unsaid, then make sure the email answers it.

New here? Start with the basics above.