For years you could ask virtually any ESP or email industry expert a question about best practices and get the answer, “It depends.” What’s the best subject line length? It depends. What’s the best send time? It depends. What’s the best call to action? It depends. And that answer used to be an accurate one, although it was always frustrating. “Can I have an answer with some specificity in it?” “That depends.” Arrggh! Yet that used […]