Email subject lines are your first (and sometimes only) impression. If it doesn’t grab attention, your message will likely end up ignored, archived, or worse—deleted. So, how can you make sure your emails stand out in a crowded inbox?
In this post, we’ll walk you through practical tips to write subject lines that actually get opened, including real-world examples and dos and don’ts you can apply right away.
Why Subject Lines Matter
Studies show that 47% of email recipients open an email based on the subject line alone, while 69% report emails as spam based on the subject line. That means your success depends heavily on your first few words.
9 Tips to Write Click-Worthy Email Subject Lines
1. Keep It Short and Sweet
Most people read email on mobile devices, where longer subject lines get cut off. Aim for 6–10 words or under 50 characters whenever possible.
Example:
- Bad: “Introducing Our New Product Line Available This Month Only at Special Discounted Prices”
- Better: “New arrivals you’ll love 🎉”
2. Create Curiosity
Spark interest by teasing what’s inside—without giving it all away.
Examples:
- “You won’t believe what we just launched…”
- “This one thing can double your productivity.”
3. Use Personalization
Emails with personalized subject lines are 26% more likely to be opened. Adding a name or location can make your email feel more relevant.
Example:
- “Lisa, your weekly growth tips are here!”
- “Top deals near Chicago this weekend”
4. Offer Value or a Clear Benefit
Let readers know what they’ll get if they open the email. Make it about them, not you.
Examples:
- “Free guide: 10 ways to write better emails”
- “Save 20% on your next purchase—today only”
5. Use Numbers and Lists
Numbers and lists help organize content and are easy to scan.
Examples:
- “7 subject line formulas you can steal”
- “3 simple steps to grow your email list”
6. Create Urgency (But Don’t Overdo It)
People are more likely to act if they think they’ll miss out. Use urgency honestly and sparingly.
Examples:
- “Last chance: sale ends at midnight!”
- “Only 50 spots left—register today.”
7. Ask a Question
Questions naturally prompt engagement and can pique curiosity.
Examples:
- “Struggling with low open rates?”
- “What’s really holding back your growth?”
8. Test Emojis (But Use Them Wisely)
Emojis can help your email stand out when used appropriately for your audience and brand tone.
Examples:
- “🔥 Hot deals you can’t miss”
- “Running late? ⏰ See our schedule update.”
9. A/B Test Your Subject Lines
Sometimes the only way to know what resonates in subject lines is to test. Use A/B testing tools in your email marketing platform to compare open rates between two subject lines.
What to Avoid
- ALL CAPS or excessive exclamation!!!!! – Feels spammy
- Clickbait – Don’t promise what you can’t deliver
- Generic lines – “Newsletter #27” doesn’t tell readers why they should care
Final Thoughts
Great subject lines don’t just get emails opened—they set the tone for engagement and trust with your readers. Combining creativity with clear value will boost your open rates and make your email marketing much more effective.
Want some inspiration? Keep a swipe file of subject lines that grab your attention in your inbox. The best ideas often come from simply observing what works on you.
Best Practices Summary:
- Keep subject lines short and mobile-friendly
- Include a clear value or benefit to the reader
- Use personalization whenever possible
- Incorporate curiosity, urgency, or questions
- Test and optimize based on real results
Ready to boost your open rates? Try these tips in your next campaign, and see the difference for yourself. ✉️
In the comments, let us know which strategy works best for you!
