In a world where littering was once seen as harmless, the phrase "Don't Mess with Texas" was born out of a successful campaign to reduce trash on highways. Today, we're facing a new kind of littering - email clutter. Email inboxes are more personal, making it harder to realize how cluttered they've become. This "email littering" is not just about spam, but also about careless or sloppy emails that deliver no value. The problem with email littering is that it punishes your sending reputation with mailbox providers and ISPs, as recipients show less engagement over time. To avoid this, send emails people expect and want to receive, dig into how customers respond to transactional messages, and prioritize happiness over just delivering the message. By doing so, you'll not only make your customers happier but also improve your sending reputation.