Best Practices for Writing Engaging Newsletter Subject Lines That Get Opened

June 01, 2025
smith
smith
smith
smith
4 mins read

Best Practices for Writing Engaging Newsletter Subject Lines That Get Opened

The subject line is the first thing your subscribers see and plays a crucial role in whether your newsletter gets opened. A well-crafted subject line grabs attention, sparks curiosity, and encourages recipients to click.

This article covers essential tips to write subject lines that boost your newsletter open rates.


1. Keep it Short and Clear

Aim for 40-60 characters so the entire subject line displays well on mobile devices.


2. Create Curiosity

Use intriguing questions or teasers that encourage recipients to open and learn more.


3. Personalize When Possible

Include the recipient’s name or other personalized details to increase relevance.


4. Use Action-Oriented Language

Start with verbs that prompt action like “Discover,” “Get,” or “Learn.”


5. Avoid Spammy Words

Stay away from all caps, excessive punctuation, or words like “Free” or “Buy Now” that may trigger spam filters.


6. Test Different Approaches

Use A/B testing to compare subject lines and find what resonates best with your audience.


7. Match the Content

Ensure the subject line accurately reflects the newsletter’s content to build trust.


8. Include Numbers or Lists

Subject lines with numbers tend to attract attention, e.g., “5 Tips for Better Emails.”


Final Thoughts

Crafting engaging subject lines is both an art and a science. By applying these best practices and continually testing, you can increase your newsletter’s open rates and build stronger connections with your audience.

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