Did you know 47% of email recipients open email based on the subject line whereas 69% of email recipients report email as spam based solely on the subject line. Emails with no subject all together have an open rate of 8% more than those with a subject line, whereas e-mails with personalized subject lines are 22% more likely to be opened. Check out our infographic on E-mail subject lines for latest statistics and trends.
Infographic by- Invesp Conversion Optimization
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Open rate by number of words in E-mail subject line
| Number of words | Open rate |
| 0-5 | 16% |
| 6-10 | 21% |
| 11-15 | 14% |
| 16-20 | 12% |
| 21-25 | 9% |
Open rates with recipients name in E-mail subject line
| Name | Open rate |
| With name | 18.30% |
| Without name | 15.70% |
18.7% decrease in open rates when the word “newsletter” is used in subject lines.
Emails with “Free” in the subject line were opened 10% more than those without.
Emails with “fw:” in the subject line were opened 17% less than those without.
Subject lines that create a sense of urgency and exclusivity can give a 22% higher open rate.
