3/19/2026 • 5 min read
How to write subject lines that get opened
A repeatable framework for writing stronger subject lines without guessing.
Great subject lines are usually built from four ingredients: audience, outcome, intrigue, and tone.
A practical framework
Use this template:
[Relevant cue] + [clear value] + [light intrigue]
Examples:
- Your Q2 renewal checklist before Friday
- Three onboarding fixes to reduce churn
- Still leaking leads after demo requests?
Put this advice into practice
Test your next subject line before you send it.
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