It’s one of the top questions to plague email marketers: “What’s the best frequency for email marketing to optimize response rate?” Is there an generalized optimal email frequency: once a week, once a month, once a day!? Is less more or or is more more?! As you might have already guessed, one of your best email deliverability tools isn’t actually an email delivery tool at all. It’s actually a skill: it’s knowing when to email people […]