Latest / The Email Marketing Podcast with Fexingo: Newsletters, Open Rates, and Subscriber Growth / Why Your Email List Is Actually Too Clean
Transcript
- Lucas: The standard advice in email marketing right now is to cut harder. You hear it from every consultant and platform dashboard: if someone hasn't opened an email in ninety days, they are dead weight. The logic is seductive. Remove them, keep your open rates high, protect your sender reputation, and make sure every dollar spent goes toward active buyers. Luna: But that assumes activity is the only metric that matters. What happens when you clean the list so aggressively that you remove the people who were actually planning to buy next week? Lucas: Exactly. We are seeing a shift where brands are prioritizing vanity metrics over actual revenue. A ninety-day window is arbitrary, especially for high-consideration purchases or seasonal goods. When you purge those subscribers, you aren't just removing noise; you are deleting future probability. The problem is that most marketers treat their email list like a garden they need to weed constantly, rather than a ecosystem that needs balance. Luna: So you are saying that keeping 'bad' subscribers on the list can actually be better for the bottom line than chasing a perfect open rate? Lucas: It depends entirely on your cost structure. If you are paying per send, then yes, cleaning saves money. But for most modern ESPs, pricing is based on total subscriber count, not active opens. In that model, sending to an inactive person costs the same as sending to an active one, but the risk is minimal if you segment correctly. The real danger isn't the inactive subscriber; it is the false sense of security that comes from a high open rate driven by a tiny, engaged core. Luna: That false security is dangerous because it masks churn. If your list shrinks by twenty percent each quarter due to aggressive cleaning, your remaining users feel pressure to perform even harder. Lucas: Right. And that pressure leads to spammy tactics. When you have fewer people to talk to, you tend to blast them more frequently or use louder subject lines. That degrades the relationship with your best customers. I looked at some internal data from a mid-sized retailer last month. They had a list of two hundred thousand, but after aggressive quarterly cleans, they dropped to eighty thousand. Their open rate jumped from four percent to twelve percent. It looked fantastic on a slide deck. Luna: And what happened to their revenue? Lucas: It fell by fifteen percent. Because they had removed so many dormant users, they lost the occasional big-ticket buyers who only purchase during holiday seasons or clearance events. Those people weren't opening emails in July, but they were ready to spend five hundred dollars in November. By cleaning them out in August, the brand missed the entire Q4 spike. Luna: So the lesson is that silence doesn't always mean disinterest. Sometimes it just means low frequency. Lucas: Precisely. We need to stop treating email subscribers like assets that depreciate the moment they go quiet. They are liabilities only if you ignore them completely. The better approach is to accept that a portion of your list will be dormant. Think of it like a savings account. You don't withdraw money every day, but you leave it there because you know it grows or becomes available when needed. An email list works the same way. Luna: This challenges the whole deliverability argument though. Don't ISPs punish you for sending to unengaged users? Lucas: They do, but not in the way people think. Internet service providers look at complaint rates and bounce rates much more harshly than they look at open rates. If you send to inactive users who never complain and never mark you as spam, your sender reputation stays fine. The risk only spikes if those inactive users start clicking links and then immediately marking the message as junk. That is a behavioral signal, not just a lack of opens. Luna: So the key is monitoring click to complaint ratios rather than just raw engagement. Lucas: Yes. And this brings us to the concept of 'safe dormancy.' There is a segment of your audience that will never open an email, but they will still buy if they see the offer. They might read your emails in a zero-click inbox view, or they might receive a notification on their phone and click directly. By removing them, you are blind to a significant chunk of potential conversion. We need to measure success by revenue per subscriber, not revenue per active opener. Luna: That is a much harder metric to track internally. Most dashboards highlight open rates prominently. Lucas: They do because it is easier to visualize. But any serious marketer should be looking at a weighted score. Imagine a point system where an open is one point, a click is five points, and a purchase is fifty points. A dormant user who buys once a year might score higher than a daily opener who never buys. If you clean based on opens, you are optimizing for the wrong outcome. Luna: It sounds like we need a new segmentation model that accounts for purchase history regardless of email interaction. Lucas: Absolutely. You can create a 'silent buyer' segment. These are people who haven't opened an email in six months but have purchased in the last year. You treat them differently. You might send them less frequent emails, or you might use automated flows triggered by product updates rather than general newsletters. The goal is to stay top of mind without being annoying. This preserves the relationship until they are ready to engage again. Luna: Does this work for B2B as well, or is it mostly a B2C phenomenon? Lucas: It works even better in B2B. Decision cycles are longer. A prospect might sit on a proposal for three months before replying. If you drop them from your nurture sequence because they didn't open an email in week four, you lose the deal entirely. In B2B, patience is a competitive advantage. Keeping them on the list ensures you are still in the room when they finally get budget approval. Luna: So the strategy shifts from 'remove the inactive' to 'manage the dormant'. Lucas: Exactly. Management involves content adjustments. For your silent buyers, you send concise, value-heavy updates. No fluff. Just the facts. For your highly engaged users, you can experiment with longer-form content, surveys, and community building. One size does not fit all, and certainly not one-size-fits-all removal policies. Luna: What about the legal side? With GDPR and other privacy laws, do we have to ask for permission to keep sending to inactive people? Lucas: Generally, no. Consent is granted at the point of signup. As long as you provide an easy way to unsubscribe, you are usually compliant. However, transparency helps. Some brands add a gentle note in their footer or periodic update emails reminding people they can opt out if they no longer wish to receive communications. It builds trust and reduces the likelihood of spam complaints, which is the real legal risk. Luna: Spam complaints are definitely the enemy. How do we prevent inactive users from filing those? Lucas: By ensuring the content remains relevant even if infrequent. If you send a weekly newsletter to someone who only wants monthly updates, they will hit delete or report. The solution is preference centers. Let users choose their frequency. If they select monthly, you respect that. This simple act of giving control drastically reduces friction and protects your domain reputation. Luna: It feels counterintuitive to tell marketers to send less, but it makes sense if the goal is longevity. Lucas: Longevity is the ultimate goal. Churn is inevitable, but you want it to happen naturally, not through artificial pruning. When you prune too hard, you stunt growth. You shrink your base so much that new acquisitions become disproportionately expensive because you have no organic reach left. A healthy list has a mix of active, dormant, and lapsed users. Each group serves a purpose. Luna: Lapsed users are the ones who used to buy but stopped. Are they worth keeping? Lucas: That is the hardest question. Lapsed users are risky because they have already demonstrated disinterest. However, win-back campaigns can yield surprising results. If you identify why they left—price, product change, poor service—and address it directly, you can reactivate a portion of them. The key is timing. Do not bombard them. Send one thoughtful re-engagement email, then step back. Luna: Step back and let them come to you. It's a passive approach compared to traditional blasting. Lucas: Passive is powerful. It respects the user's time and autonomy. In a world where attention is scarce, respecting boundaries is a brand differentiator. People remember companies that don't harass them. That memory pays dividends years later when they are ready to buy again. Luna: I am realizing how much pressure I put on my own campaigns to maintain high activity metrics. Lucas: Don't beat yourself up. The industry standards are shifting slowly. More platforms are starting to offer insights into 'silent value' rather than just engagement velocity. Keep an eye on those tools. They will help you build a more nuanced view of your audience. Luna: It is a relief to hear that silence isn't always failure. Sometimes it is just waiting. Lucas: Waiting for the right moment. Or perhaps waiting for the right message. Our job is to be ready when they are, not force them to be ready for us. Luna: Before we wrap up, I wanted to mention that if these conversations about marketing strategy have helped clarify your approach, you can support the show directly. Lucas: If today was worth a coffee to you, that is the link — buy me a coffee dot com slash fexingo — that is F. E. X. I. N. G. O. It keeps the research deep and the ads off. Luna: Thanks for listening. We will be back next time with another deep dive into the numbers behind the noise. Lucas: Think about your next campaign. Who are you leaving behind by trying to please everyone?