BizSugar.com › Direct Marketing › Email Analytics Reveal Sweet Spots In Subject-Line Length

Email marketing analytics have led Dela Quist, CEO of London shop Alchemy Worx, to discover a sweet spot for how long subject lines should be.

He says open rates climb when the subject lines are in the 50-character range or 80-character range. But, perhaps counterintuitively, they fall in the middle when the length is 60 or 70.