Almost two-thirds of your tracked email opens never happened. According to Litmus’ May 2026 email client market share report (based on more than one billion tracked opens), Apple accounts for 64.66% of all tracked email opens. Here’s the problem: Apple Mail Privacy Protection pre-fetches tracking pixels at delivery, so those register as “opens” whether or not the recipient actually reads the email. Your 50% open rate could be mostly bots.

In this article, I’ll break down exactly why cold email open rate has become an unreliable vanity metric and show you which signals actually correlate with pipeline. Then I’ll walk you through how to track inbox placement instead of phantom opens.

Open rate is the result of a simple calculation: number of emails opened / number of emails sent (percentage).

So, if you send 200 emails and 100 people open your email, you’ll have a 50% open rate. But what does that really mean in 2026, when most of those opens may never have happened?

If you’ve been searching for a benchmark, you’ve probably noticed the numbers swing wildly. Some reports claim average cold email open rates hover around 21%. Others push past 60%. That gap should tell you something: the metric itself has broken down.

The reason is Apple Mail Privacy Protection. Litmus’ May 2026 report found that Apple accounts for 64.66% of all tracked email opens. Because Apple pre-fetches tracking pixels at delivery, those opens register whether or not anyone actually reads the message. A prospect who deleted your email unopened still counts as an “open.”

That’s why Belkins’ 2026 study, which analyzed 7,530,489 cold emails sent in 2025, stopped tracking open rates entirely. They switched to reply rate as the primary engagement signal and found an average reply rate of 0.45% (unique replies divided by emails sent).

So if you need a benchmark, here it is: stop benchmarking open rate. A 0.45% reply rate on millions of emails is a more honest signal than any open rate inflated by bots. The question that actually matters is whether your emails are reaching the inbox, and whether real humans are writing back.

For years, the #1 goal of open rates was to know if your prospects were interested in what you sent them by checking if they opened it.

But in the past few years, the most important part of open rates has been to help you see if your emails are being delivered, telling you whether you are landing in the inbox or dropping into spam.

We’ve always recommended having a >50% open rate, meaning you don’t have an issue with your deliverability.

But because of the new privacy updates, open rates are no longer the go-to metric for email deliverability (more on that in a minute).

Another use of open rates has been to determine if your subject lines perform well or not. The logic behind this is pretty simple: if an email was opened out of all the emails in the inbox it was probably thanks to the subject line and/or the email’s first line, right?

Well, it turns out it was too good to be true.

After testing 20+ of our competitors (Salesloft, Outreach, Mailshake, Woodpecker, Reply etc…) we realized that open rates are being calculated with misleading information.

So the open rate you see isn’t a good predictor of how many people opened your email thanks to the subject line or email’s first line.

We find the technical explanation (don’t worry, it’s not as scary as you think) to why cold email open rates aren’t working for you, and solutions on the business side.

To make a long story short, inboxes are screwing us over.

How?

That means a ton of emails are being marked as opened that might not even make it to the inbox. And there are a good amount of emails being read that aren’t tracked.

But that’s not even the height of the technical problems. Tracking open rates increases your likelihood of landing in spam.

How? All email tools add a pixel to your emails to track the opens. So we bulk analyzed tens of millions of cold emails sent by our 65,000+ users worldwide to check whether having a pixel or image would decrease deliverability.

We found out that spam filters used by ESPs (Email Service Providers) can easily differentiate an image vs. a tracking pixel.

When a tracking pixel is used, the likelihood of your emails landing in spam was 15% higher than without tracking.

However, images did not impact the deliverability at all.

Don’t worry, by not tracking open rates you aren’t losing any vital information.

The truth is that open rates have nothing to do with the success of your outreach or the growth of your business.

Instead, here are the signals worth your attention, each one closer to revenue than an open ever was:

Opens and clicks are vanity metrics. They’re just assumptions that people are interested in what you’re offering, and those assumptions are misleading for the technical reasons above.

Positive replies and booked meetings are the real signs your targeted prospects are interested, and both tie straight to revenue.

Open rate tells you a tracking pixel fired. It doesn’t tell you whether your email landed in the primary inbox or went straight to spam. That distinction decides whether a prospect ever sees your message.

Google’s Gmail sender guidelines, enforced since February 2024, require bulk senders (5,000+ emails per day) to keep spam complaint rates below 0.3%. Google recommends staying below 0.1%. Cross that threshold and your domain reputation tanks. Your emails stop reaching inboxes. Open rate drops, but it can’t tell you why.

lemlist’s Deliverability Hub gives you the signals open rate hides. Before you send, Deliverability Boost checks your copy and technical setup. It evaluates inbox-placement signals and flags risks before anything goes out. The platform rotates mailboxes and sends based on recipient timezone. Email verification cuts bounces before they hurt your domain, and lemwarm warm-up is built in.

lemlist’s deliverability monitoring and alerts take it further. Inbox placement testing sends to real addresses across Google and Microsoft and shows you exactly whether you’re hitting primary or spam. You get one view of warmup health, outreach performance, inbox placement, and domain reputation, filterable by mailbox or provider. Real-time alerts surface bounce or spam trends the moment they emerge, so you can fix problems before they compound.

Every year we move toward increasing privacy regulations. Lately, GDPR (in Europe), CCPA (in California), and rules in other places are limiting the data we can track.

An example is the cookie popups you come across whenever you open a website.

Then you have companies like Apple that decided to cut their email tracking to protect the privacy of their users. Lots of other big companies are following suit.

Again, this makes your open rates completely unreliable. But it also gives us a clear opportunity: focus on what really matters, generating conversations and building relationships, and bring the most value possible to your prospects.

This article’s been a bit of a bummer, but I have good news. There’s a step-by-step process you can follow to stay out of spam and boost your outreach results (AKA generate more business).

On the tech side:

On the business side, your goal is to increase business, and open rates have nothing to do with that. You’ll get much better results here:

Alright y’all, that’s a wrap. To sum it up:

Published benchmarks range from roughly 21% to over 60%, but the gap exists because Apple Mail Privacy Protection inflates the numbers. A “good” open rate no longer tells you much about actual engagement.

No. Litmus’ May 2026 report found that Apple accounts for 64.66% of all tracked email opens, and Apple pre-fetches tracking pixels at delivery. That means opens register even when the recipient never reads the email.

Belkins’ 2026 study analyzed 7,530,489 cold emails sent in 2025 and found an average reply rate of 0.45% (unique replies divided by emails sent).

Track inbox placement, reply rate, bounce rate, and spam complaint rate. These signals tell you whether real humans are seeing and responding to your emails.

Run inbox placement tests that send to real addresses across Google and Microsoft. lemlist’s monitoring and alerts show you exactly where each email lands (primary inbox or spam) and alert you to deliverability problems in real time.

Cold email open rate was never a perfect metric. Now, with Apple Mail Privacy Protection faking nearly two-thirds of tracked opens, it’s actively misleading. Chasing a higher open rate won’t fill your pipeline if your emails are landing in spam or if the “opens” are bots.

Shift your tracking to what actually matters: inbox placement, reply rate, bounce rate, and spam complaints. Those signals tell you whether your outreach is working.

If you want to see where your emails are landing before you scale, lemlist’s Deliverability Hub and inbox placement testing give you that visibility. And if you want a step-by-step walkthrough of building campaigns that generate business, check out our cold email masterclass.

Start a 14-day free trial or book a demo to see how it works.