In 2025, email newsletters are thriving because they are the last owned, algorithm-free direct line to an audience — while social reach collapses and paid ad costs climb. The 2025 State of Newsletters: Why Email is Thriving in the Digital Age comes down to one structural fact: email is the only channel you actually own.
Your loyalty email dashboard shows a 42% open rate. Your revenue from existing customers is flat. Both things are true, and only one of them matters. The Loyalty Email Metrics to Track that actually predict retention are repeat purchase rate, customer lifetime value by cohort, active engagement rate, list health, and revenue per recipient —
It’s 11pm. You’re sending outbound yourself because you can’t justify an SDR yet. You’ve fed ChatGPT a dozen prompts, rewritten your subject line six times, and your reply rate is still stuck under 2%. AI for founder outbound email is the use of AI to research, prioritize, and personalize cold outreach at scale — but
