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emailrules.today
In forceMetricsIn force 20 Sep 2021Verified 1 Aug 2026

Open rate is not a measurement any more

Are email open rates accurate in 2026?

Global · Apple

In one sentence

is broken as a KPI for a huge slice of Apple users — stop managing the business on opens alone.

Emailrules interpretation

Protection loads images (and tracking pixels) before a human reads. Your “” then counts machines, not attention. Use clicks, orders, replies, and proper tests. If your still treats machine opens as real , your automation and revenue stories can lie.

Why it matters. Founders still ask for . You need a calm, citable answer and better metrics — or you optimise ghost opens forever.

Dotted words open definitions. See how email actually works.

What to do

Your move — not a lecture

This one needs you

No platform does this for you. One concrete move, then you are done.

Some platforms will filter machine out of a report if you ask them to. None of them go back and rewrite the flows, segments and rules you built on top of open rate.

Your part: Every segment, suppression rule and send-time optimisation in your account that is keyed on an open.

What to do first

List every flow filter and segment definition that uses "opened email". That list, not the headline stat, is your actual problem.

You can skip this if: Nothing in your account segments, suppresses or optimises on . Check before you assume that.

Who this applies to

Everyone. It matters most if any segmentation, send-time optimisation or policy in your account is keyed on .

Checklist

  • 01Move segmentation onto clicks, site visits and purchases.
  • 02Stop reporting to clients as a performance metric. Report it as a smoke alarm at best.
  • 03Audit your and re- flows. Most were written when meant something and now suppress the wrong people.

That’s enough to act. The exact wording, the enforcement record and every primary source sit under Proof & sources, for counsel, bosses, or AI tools that need a citation. Not legal advice.

Proof

Exact position, enforcement, sources

For records and people who will check you. Skip if Monday’s move is already clear.

Source fact

Protection pre-fetches images through a proxy, firing your whether or not a human looked. Apple accounts for 64.66 percent of all measured , and MPP affects roughly 55 to 60 percent of them. In late November 2025 Gmail image loading fell by about a third, and senders saw open rates drop 30 percent quarter on quarter with no matching fall in clicks or revenue.

What happens if you do not

Not a rule anyone enforces, but it silently invalidates a large amount of routine practice, which is why it belongs here.

Sources

  • Litmus, Email Client Market Share (May 2026 data, current as of 1 June 2026)
    Published 1 Jun 2026Read primary source
  • Validity, What's really behind Gmail's open rate drop
    Published 15 May 2026Read primary source

History of this page

  • Added the November 2025 Gmail image-loading decline.
  • Added.

Related

Take this with you

GET https://emailrules.today/rules/apple-mail-privacy-protection-open-rates?format=json

Same URL, same answer, every field including the ones behind the Proof tab. An Accept: application/json header on the plain URL does the same thing. All the endpoints.