Big Wins And Incremental Improvements

(Richard Millington) #1

Originally published at:
Last week we ran a split test on our mailing list. You can see the results below (or click here). We predicted that ‘collaboration book’ would be the most opened subject line (all three were ahead of Mailchimp’s benchmarks), but the difference was surprising. A +5% difference is relatively rare. This jives with what we’ve seen before. Namely that highly specific subject lines and question-related subject lines are associated with spam and are opened less. Interestingly, the unsubscribe rates for the first two emails were 25% to 50% higher than the last too. Incremental improvements like this matter. Big wins…