Latest / The Copywriting Podcast with Fexingo: Sales Letters, Headlines, and Persuasive Writing
How a Single Question in the Subject Line Lifted Open Rates
In this episode of The Copywriting Podcast, Lucas and Luna dig into a classic but often misunderstood tactic: using a question in the subject line. They examine a split test from a B2B software company that showed a 47 percent lift in open rates when the subject line was a simple, curiosity-driven question instead of a declarative statement. They break down why questions work, the psychology of open loops, and the subtle rules that make them effective—like keeping them short, specific, and relevant. They also warn against overused question patterns that can feel gimmicky. With real examples…
The skinny
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