Your Open Rates Didn’t Drop. The Truth Just Caught Up.

What the Constant Contact reporting change really means — and why it should change how you think about reaching your customers.

If you’ve logged into Constant Contact recently and noticed your open rates look lower than they used to, you’re not alone — and nothing has gone wrong. What changed is the measurement, not your marketing.

In early 2026, Constant Contact updated how it calculates open rates. Going forward, your reports will show two separate figures: Confirmed Opens (real people who actually opened your email) and Proxy Opens (automated activity from privacy tools, bots, and services like Apple’s Mail Privacy Protection program). Open rate is now calculated using confirmed opens only.

For most garden centers, this means open rates that were showing 30–45% may now read more like 15–25%. The emails didn’t start performing worse. You’re simply seeing an honest number for the first time.

“The emails didn’t start performing worse. You’re simply seeing an honest number for the first time.”

Why This Happened: Apple’s Mail Privacy Protection

The root cause traces back to September 2021, when Apple introduced Mail Privacy Protection (MPP) as part of iOS 15. The feature was designed to protect user privacy, but it had an unintended consequence for email marketers: Apple’s servers began automatically “opening” emails in the background before a user ever looked at them, triggering the tracking pixel that tells email platforms an open occurred.

By 2025, Apple Mail held more than 50% of the email client market. That means a majority of the “opens” recorded on most email platforms over the past four years were, in significant part, automated proxy activity — not a person reading your subject line and deciding to open your message.

Constant Contact isn’t the first platform to address this. Mailchimp added an optional filter in mid-2024. Other platforms have taken inconsistent approaches — some including MPP opens, some excluding them, some letting users toggle between the two. Constant Contact’s decision to make confirmed opens the default — and make the comparison transparent — is one of the cleaner implementations in the industry.

 

INDUSTRY CONTEXT: Platform Comparison Mailchimp: Optional MPP filter, added mid-2024, applies only to emails sent after June 22, 2024. Brevo: Reversed course in February 2025, now includes MPP opens by default with a toggle to exclude. Campaign Monitor: Downplays open data but provides no filtering capability. Constant Contact (current): Confirmed opens as the default metric, proxy opens reported separately. This is among the most transparent approaches in the market.

This Is Part of a Bigger Story

The open rate correction doesn’t exist in isolation. It’s one piece of a broader reckoning happening across digital marketing channels — a gradual recognition that the metrics the industry has relied on for years were, in many cases, significantly overstated.

Consider what’s happening on social media at the same time. Facebook’s organic reach for business pages averaged just 1.37% across 2024. For a garden center with 2,000 followers, that means a typical post reaches roughly 27 people. Instagram engagement rates fell from 2.94% to 0.61% between January 2024 and January 2025. These numbers have been declining for years as platforms transitioned from organic reach to paid advertising models — but many small business owners are only now confronting how stark the gap has become.

The uncomfortable truth is that digital marketing has been running on inflated numbers for the better part of a decade. Email open rates were padded by proxy activity. Social reach was propped up by platform growth that has since stalled. The correction that’s happening now isn’t a crisis — it’s the industry’s measurement tools finally catching up to reality.

“Email still generates $36–$40 for every dollar spent. Even with honest numbers, it dramatically outperforms every other channel available to independent garden centers.”

What Still Works — and What the Numbers Actually Show

Before drawing conclusions about marketing effectiveness, it’s worth grounding the conversation in what the data actually supports. Even with accurate, lower open rates, email marketing remains the highest-ROI channel available to independent garden centers. Industry research consistently shows email generating $36–$40 for every dollar spent — a return that dwarfs social media, paid search, and virtually every other channel.

The metric that matters most in email right now isn’t open rate anyway. It’s click rate — because clicks aren’t affected by Apple MPP or proxy activity. A click represents a real person who read your message and decided to take action. For most industries, a 2–4% click rate on email is strong. If your click rates are healthy, your email program is working — regardless of what the open rate says.

The same logic applies to social media. Organic reach being low doesn’t mean social is worthless. It means organic-only strategies have limited ceiling, and that the value of social is increasingly in community building, brand presence, and targeted paid amplification rather than raw post reach.

A Better Signal: What App Engagement Is Telling Us

Against this backdrop, the engagement data from mobile app platforms tells a meaningfully different story — and it’s one worth paying close attention to.

Garden centers using a branded loyalty app are seeing push notification opt-in rates approaching 90%. To put that in context: industry averages for iOS push notification opt-in hover around 40–60%, because iOS requires users to explicitly grant permission. A 90% opt-in rate reflects something beyond passive acceptance. It reflects active trust — customers who have installed the app, seen the value in it, and said yes to an ongoing conversation.

The engagement data behind that opt-in is equally telling. Loyalty check-in participation remains steady over time, independent of what promotion happens to be running. This is the distinction that matters most: these customers aren’t showing up just to redeem a coupon. They’re maintaining an active relationship with the store. That kind of consistent behavioral engagement is the clearest proxy for customer loyalty available in any marketing channel.

And unlike email open rates or social impressions, app engagement data isn’t subject to proxy inflation. A check-in is a check-in. A notification open on a personal device reflects a real person making a deliberate choice. The metrics mean exactly what they say.

 

THE CHANNEL COMPARISON Email confirmed open rate: ~15–25% of subscribers (post-MPP correction) Facebook organic post reach: ~1.37% of followers App push notification opt-in: ~90% of app users App loyalty check-in participation: Steady, behavior-driven engagement  One of these channels is not like the others — and it’s the one your most loyal customers are already on.

 

What This Means for Your Marketing Strategy

The practical takeaways from all of this point in a consistent direction for independent garden centers.

Recalibrate your email benchmarks. Don’t compare your current confirmed open rates to your historical rates from before the Constant Contact change. Establish a new baseline starting now, and focus on click rate as your primary engagement indicator.

Don’t abandon social — but be clear-eyed about what it does. Social media organic reach is most valuable for community building, seasonal storytelling, and reaching new audiences through paid amplification. It’s not a reliable broadcast channel for reaching your existing customer base.

Prioritize owned audiences. Email lists and app user bases are assets you own. Social followers are an audience you rent on someone else’s platform, subject to algorithm changes and declining organic reach. The direction of the industry strongly favors investing in channels where you control the relationship.

Take app engagement data seriously as a business intelligence tool. Loyalty participation trends over time tell you more about the health of your customer relationships than open rates or follower counts ever did. If check-in frequency is growing, your most valuable customers are deepening their relationship with your store — and that’s the metric that drives long-term revenue.

The Bottom Line

The Constant Contact change feels disorienting because the numbers look worse. But lower confirmed open rates aren’t a sign that your marketing stopped working. They’re a sign that the measurement is now honest.

The garden centers that will navigate this moment well are the ones who resist the temptation to chase the old numbers, and instead build their marketing strategy on the channels and metrics that reflect genuine customer relationships. Email remains powerful when the focus shifts to clicks and conversions. Social media retains value when the goal is brand presence rather than broadcast reach. And a loyal, opted-in app audience — one that shows up consistently, independent of promotions — is the clearest indicator of customer relationship health available in modern marketing.

The numbers got more honest. That’s a good thing. Build on what’s real.