Here’s What’s Working In Email Subject Lines

Chris Crum

Adestra put out an interesting report on what works in email subject lines and what doesn’t. Character count, word count and the keywords themselves are all key ingredients, and the study compares variables across different types of emails.

For the report (via MarketingCharts), the firm analyzed 1.159 billion emails sent within the last year. They looked at the length of subject lines, as well as word selection.

“In the B2B world, it’s clear that either short or long subject lines work best. Short subject lines (<30 characters) perform strongly, as do long subject lines (>90),” write Parry Malm and Mark Bonner, the authors of the report. “The key point here is...

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