Proven Email Subject Line Formulas That Get Opens

Your subject line has 2 seconds to convince someone to open. These proven formulas will help you write subject lines that get clicked.

Curiosity Gap

• "The #1 mistake [audience] makes with [topic]"
• "What [person] knows about [topic] that you don't"

Urgency/Scarcity

• "[X] hours left: [offer]"
• "Last chance for [benefit]"

Benefit-Driven

• "How to [achieve result] in [timeframe]"
• "[X] ways to [solve problem]"

Questions

• "Are you making these [topic] mistakes?"
• "Want to [achieve goal]?"

Conclusion

Test these formulas with your audience. What works varies by industry and segment.