emailrules.today
Stop 5 of 8Week oneThe same second

Engagement

What recipients actually do with your mail — the signal providers weight most heavily when choosing the folder.

Say it out loud

“Whether people actually want our email. It decides the folder more than anything technical does, and it is not the open rate.”

Mailbox providers watch behaviour you cannot see: what a Gmail user does inside Gmail. Replies, clicks, dragging a message out of spam and reading without deleting all count for you. Reporting spam, deleting unread and long silence count against. Their picture of your audience is better than yours, which is exactly why your dashboard can look healthy while placement falls.

In your dataWhat actually counts, and what you can seeOur framingscrolls →
FOR YOU reply · click · drag out of spam · add to contacts

Moving a message out of the spam folder is the strongest positive signal a person can send, and no dashboard will ever show it to you.

AGAINST YOU Report spam · delete unread · months of silence
NEITHER the open, since September 2021

Partly machines. Building a segment on it keeps the dead and drops the living.

You can see opens (dirty) · clicks · unsubscribes · complaints
They can see all of that, plus everything above

This asymmetry is the whole reason a send can look fine to you and land in spam.

No provider publishes how these are weighted. What every one of them publishes is the instruction to send to people who want it.

Yours

Nobody does this for you.

What goes wrong

Building the “engaged” segment on opens. Since Apple began prefetching images, an inactive Apple Mail address looks engaged and a genuinely interested reader with images off looks dead, so the segment quietly inverts.

What people get told

The claim. “If our authentication is right, we will reach the inbox.”

Actually. Authentication makes you eligible to be considered. It answers who you are, and every provider requires it. It says nothing about whether anyone wants the mail, and a perfectly authenticated message to a list nobody reads goes to spam. Passing SPF, DKIM, DMARC and alignment is the floor, not the outcome.

The dated rules behind this

A definition is not a citation. These are the pages with the primary source, the date it was published, and what to do about it.

See also

Where this sits

Stop 5, reputation decides. Having proved who you are, you find out whether they want you — and that is mostly about your history, not this message.

← BeforeBIMINext →Inbox placement

FAQ

Awkward questions

Who is this actually for?

People who ship email and are too busy to re-read every PDF: week-one marketers, lifecycle/CRM, deliverability, multi-country ops, DTC brands, agencies — on Klaviyo, Mailchimp, Braze, HubSpot, SFMC, or something else. Pick your tool and geos so product-specific pages only appear when they match. EU and UK are first-class filters. Not for people who sell tools about email and need a fake score to demo.

Why only ~40 rules? Isn’t that… thin?

On purpose. A wall of 400 undated “best practices” is how you look busy and still get burned. Every page needs a primary source we actually read. Thin and checkable beats fat and folklore. Europe, bulk inbox rules, measurement honesty, and protocol topics like BIMI/DMARC policy are on the shelf when we can cite them — not every Member State and not every vendor myth. Coverage map lists what we still refuse to invent.

Is this legal advice?

No. If it were, you’d have a billable hour and a longer PDF. This is a dated operator reference written by an email geek. Confirm anything high-stakes with counsel who knows your facts. Same for “will this make me compliant?” — no tool does that. Lawyers and judges do. We say what the sources say and what to do first on Monday.

Why no trust score out of 100?

Because we refuse to invent a number you can’t audit. Fake scores sell seed tests and panic. You get findings, dates, and links. If that feels less exciting than a red dial, good — you’re not the red-dial customer.

Why should I trust you more than my ESP’s blog?

ESPs sell seats. Seed-score vendors sell fear. AI invents citations when nobody watches. We sell nothing today — no pixels, no placement scores, no affiliate — so we can say when a tool is the problem. A human verifies, dates, and corrects in public. Tools may help draft; they do not ship unsourced claims. Check the primary links. Fail that test and leave.

Do I need an account?

No. Filters live in this browser and the URL. Share the link. That’s it. Accounts come later only if they earn it — not so we can nurture you about email.

I’m an agency. Where’s multi-client mode?

We tried a client-name CRM on the setup card. It made the product feel like work before it felt useful. Role filters + copy link + one-page brief (optional PDF title) is enough for now. Complexity comes back when the free shelf is habit, not before.

Is the quiet changelog a bug?

No. Quiet means nothing material moved. We don’t invent urgency so the homepage looks “alive.” Sticky risks still show what usually needs a person when the market is still.