20 Email Subject Lines Designed To Spark Curiosity

Stimulate Curiosity

Because it is the first thing your targeted recipient sees, the email subject line is the most important part of your email. If your subject line is not brilliant, it is the ONLY thing about your email they will see. If the subject line doesn’t do its job, your email will remain unopened, ignored, weak, and ineffective. Boost the quality of your subject line, and you improve the efficacy of your email campaign. 

Curiosity can capture the attention of an email recipient. It can create an itch that wants to be scratched, a thirst that needs to be slaked. That may be enough to open your email! Make sure the email content is connected to your curiosity inducing subject line! Don’t disappoint!

This list provides examples of subject lines that invoke curiosity. You may also want to look at lists that stimulate fear of missing out (FOMO), or that stand out using humor.

Reviewing lists that model best practices (and worst practices), can stimulate your creativity. It can help you get to ‘brilliant’ faster.

The ebook, From Boring to Brilliant Transform Your Email Open Rates with These Subject Line Tips, provides useful information and instructional guidance about creating subject lines. It includes 5 essential principles related to email subject line creation. It also provides 13 suggestions for developing better email subject lines. Suggestions are ranked in order of importance. You can choose two or three suggestions that will give you the most impact and get started improving your email marketing results right away.

20 Email Subject Lines Designed To Spark Curiosity

1. "You Won't Believe What We Discovered Last Week..."
2. "A Hidden Opportunity Awaits—Are You Ready?"
3. "This Simple Trick Changed Everything for Me"
4. "An Unexpected Surprise Inside Just for You"
5. "The Secret to Success No One Talks About"
6. "Can You Solve This Riddle? Only 1% Can!"
7. "Why Is Everyone Talking About This?"
8. "The One Thing You're Missing Right Now"
9. "Open to Uncover the Mystery..."
10. "Shocking Results from Our Latest Test"
11. "What Happens Next Will Blow Your Mind"
12. "This Might Be the Most Important Email You Read Today"
13. "A Strange But Effective Way to Improve Your Day"
14. "You Won't Believe What's Coming Next!"
15. "The Truth Behind This Common Myth Revealed"
16. "Have You Seen This Yet? It's Unbelievable"
17. "Are You Ready to Discover Something New?"
18. "An Opportunity That Disappears by Midnight..."
19. "This Unexpected Insight Could Change Everything"
20. "What We Found Could Change the Game for You"