← All topicsMetrics & Reporting › Engagement Depth & Quality
Accuracy / correctness · 3
accuracyScript says 'Most email platforms guess this by watching a tiny tracking pixel', matching article's 'Most ESPs estimate dwell time by watching how long a tiny tracking pixel stays active.' Hedged correctly with 'guess/estimate', not asserted as universal. Good, no drift.
accuracyScript says 'Apple Mail is a huge share of how people read email' rather than citing a specific percent. Article also avoids a hard number ('a huge share'). Correct, no unhedged benchmark introduced.
accuracyBeat 3 claim 'a robot won't deliberately tap a link' mirrors article's 'a proxy can't fake a deliberate link tap.' Accurate framing of clicks as stronger, not perfect. No overclaim.
Would elevate the video · 1
elevateArticle names the mechanism precisely: 'MPP pre-loads pixels on Apple's servers before the recipient even opens the email.' Script keeps this. Good. But article also notes providers 'track their own engagement signals that never show up in your ESP reports at all', which draws the CAN-measure vs providers-measure-internally line. Consider adding one line so viewers don't think dwell time is the only hidden signal.
Considered, left out · 2
skipArticle's link to the tracking-pixel explainer question is dropped from narration. Rightly skipped inline (it's its own video); surfaced in CONNECTIONS/description instead.
skipArticle mentions 'scroll data (where available)' as adding texture. Left out to keep beats to one idea each; scroll depth is fully covered by 004.008.002, linked as next video.
Dwell time in email, and why it's mostly broken now
Question: 004.008.001 · What is dwell time in email? · ~3:00 · single-question video
COLD OPEN
How long did they REALLY read your email?

Your report says a subscriber kept your email open for eleven seconds. Feels like proof they read it, right? That number has a name, dwell time, and here's the uncomfortable part: for a big slice of your list, it's measuring nothing at all.

⬡ talking-stat, big "0:11" on a stopwatch, then a question mark flickers over it
BEAT 1, what dwell time actually is

Dwell time is just how long your email stayed open after someone opened it. Long dwell, they probably read it. Short dwell, they glanced and sailed off. Most email platforms guess this by watching a tiny tracking pixel. The pixel fires when the message opens, and goes quiet when it closes. The gap between those two is your dwell time.

⬡ timeline, pixel fires at "open", stopwatch runs, pixel goes quiet at "close"
BEAT 2, why it broke
A robot opened it before your reader did.

Then Apple changed the rules. Since 2021, Apple Mail Privacy Protection pre-loads that pixel on Apple's own servers, before the human ever taps the message. Your platform sees the pixel fire, starts the clock, and logs a dwell time for someone who may not have read a single word. The stopwatch is running, but nobody's in the room.

⬡ split-compare, LEFT "What you see: opened 11s" vs RIGHT "What happened: proxy loaded it, human absent"
BEAT 3, so how much do you trust it

Apple Mail is a huge share of how people read email, so this isn't a rare edge case. If a real chunk of your crew reads on iPhones or Macs, a lot of your dwell time is just noise. This is where a proxy can't fake you out: clicks. A robot won't deliberately tap a link. So a click is a far stronger sign a real human was there than any dwell number.

⬡ gauge-meter, needle low on "dwell time", high on "clicks"
TAKEAWAY
⬡ title-card

So treat dwell time as directional, never as proof. Alongside clicks and replies it can add a little texture. On its own, after Apple's change, it's not something to build your strategy on.

NEXT / SUBSCRIBE

If this cleared it up, subscribe, there's a whole series untangling the metrics in your dashboard. Next up: can scrolling and reading time even be measured? Short answer, sort of.

⬡ end-card, Subscribe + Next: "How scrolling and reading time get measured" (004.008.002)
DESCRIPTION

Dwell time is how long an email stays open, and your platform estimates it by timing a tracking pixel from open to close. Sounds useful, until you learn that Apple Mail Privacy Protection has pre-loaded that pixel on Apple's servers since 2021, firing the timer whether or not a human ever read the message. This video explains what dwell time is, why it's mostly noise now, and why clicks are a far stronger signal.

Next: How scrolling and reading time get measured → [link 004.008.002]

Full written guide → reviewmyemails.com/emailalmanac/compliance/engagement-and-tracking/what-is-dwell-time-in-email

#email #deliverability #emailmarketing

CONNECTIONS
• next: 004.008.002 How scrolling or reading time gets measured
• related: 004.008.004 What engagement data mailbox providers actually use · 004.008.007 How engagement affects sender reputation · 004.008.003 How read, skim, glanced categories get defined
• vocab: dwell time, tracking pixel, Apple Mail Privacy Protection (MPP)