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Subject Line Benchmarks: How Length and Personalization Impact Email Performance

Yes Lifecycle Marketing

This report focuses on how subject line components like length, personalization, message type and industry impact email performance.

Some of our key findings include:

  • Subject lines under 20 characters generated a 31% higher open rate than the overall average.
  • Personalized subject lines generated 50% higher open rates and 58% higher click-to-open rates than non-personalized ones.
  • Subject line length impacted open rates most significantly for the retail and technology industries.
Sponsored by Yes Lifecycle Marketing


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