Quick apology before we get into it, this one's going out later than usual.
The week got away from me, and with the USA World Cup match tonight, this newsletter almost didn't make it out at all.
But here it is, just in time for kickoff.
For the first time in over a year, I upgraded my Base Sending Segment strategy.
Not a tweak. An upgrade. The biggest change I've made to how I define a "sendable" subscriber since I built the framework.
Here's what forced it.
The pattern I couldn't unsee
Reviewing client accounts and our own newsletters, the same thing kept surfacing.
Subscribers the ESP reports as "opening." Month after month. Sometimes every single send.
And they have never clicked. Not one link. Ever.
A year ago, that open was enough to keep them in the sending pool. It looked like engagement. It counted as engagement.
Not anymore.
I call this opener bloat, and once you know how to look for it, you'll find it in every list you touch.
Why an open without a click isn't a person
In 2026, an open with no click behind it usually isn't a human decision. It's infrastructure.
It's Apple's Mail Privacy Protection auto-firing your tracking pixel whether the subscriber looked at your email or not.
It's image prefetching, loading your pixel before anyone touches the message.
It's a security scanner doing its job, opening your email so an employee doesn't have to.
Every one of those registers as an "open" in your dashboard. None of them is a reader.
You're sending to machines and calling it engagement.
And here's the part that costs you: mailbox providers can tell the difference even when your ESP can't.
When a growing share of your volume goes to addresses that never generate real human signals, your sender reputation absorbs the damage.
The bloat isn't neutral. It's dragging down inbox placement for the subscribers who actually want your email.
The upgrade: one rule
The fix isn't complicated. It's one rule, applied past the new-subscriber grace window:
An open only keeps you in the sending segment if you've also clicked. Ever.
That's it. One click, at any point in your history, and your opens count as evidence of a human.
Walk through what that does:
New subscribers still get runway. The grace window protects them while they settle in.
Recent clickers stay. Obviously.
Openers with real click history stay. They've proven there's a person behind the pixel, so their ongoing opens mean something.
The long-tenured, open-only ghost? Gone.
What's left is the whole point
What survives this filter is a list measured by behavior that requires a human on the other end.
That's not a smaller list for the sake of being smaller. It's engaged audience density, the share of your list that's demonstrably alive.
An open tells you a server fetched an image.
A click tells you a person made a decision.
I'm building around the second one. You should be too.
Let’s go USA,
Chris Miquel
P.S. If you're wondering how much of your own "engaged" segment is opener bloat, that's exactly the kind of thing we dig into with Smart Delivery. We audit the signals behind your sending segment, find the machines masquerading as readers, and rebuild your segmentation around real human behavior. If you want a second set of eyes on your list, book a call and we'll walk through it together.
