Email marketing platforms like Mailchimp and Constant Contact make it easy to track opens and clicks. For years, those numbers were reliable indicators of engagement. Today, they tell only part of the story.

If you’ve noticed unusually high open rates or clicks that don’t seem to translate into website visits, phone calls, or sales, you’re not imagining things. Modern email privacy features and cybersecurity tools routinely inflate these metrics.

What Counts as an Open?

An open is recorded when a tiny invisible tracking image inside an email is downloaded. Years ago, that usually happened only when a real person opened the message.

Why Open Rates Are Inflated

Apple’s Mail Privacy Protection often downloads tracking images automatically, making emails appear opened even if they were never read. Corporate email security systems may also download images while scanning incoming mail for threats. One recipient using multiple devices can generate multiple opens as well.

Why Click Rates Can Be Inflated

Many business email security platforms automatically visit every link in an email before delivering it to the recipient. Their goal is to detect phishing sites and malware—not to interact with your marketing. Those automated visits can be recorded as clicks.

They’re Not Bad Bots

Most of this activity comes from legitimate privacy and security services provided by Apple, Microsoft, Google, Proofpoint, Mimecast, Barracuda, Cisco, and others. They’re protecting users, not trying to distort your reporting.

What Should You Measure Instead?

Treat open rates as a trend rather than a precise measurement. Focus more attention on unique clicks, website engagement after the click, form submissions, appointments, purchases, replies, and other real business outcomes. Those metrics are far more meaningful than a headline open rate.

The Bottom Line

Email marketing remains one of the highest-performing digital marketing channels. The difference is that success is no longer measured by opens alone. Modern marketers should view opens as a rough indicator of deliverability and compare campaigns over time, while making decisions based on conversions and genuine customer engagement.