In forceHygieneIn force 1 Feb 2024

Inactive recipients need a documented sunset policy

Q: How long can I keep emailing people who never open or click?

Gmail and Yahoo tell bulk senders to focus on willing, engaged recipients and to reconfirm or consider removing inactive ones. Neither publishes a universal number of days. A sunset window is therefore a documented sender policy—tied to cadence and lifecycle—not a mailbox-provider statute. Mailing multi-year inactive addresses is also how recycled spam traps and complaint spikes form.

Q: In plain English?

Gmail and Yahoo tell bulk senders to focus on people who want the mail. Sunsetting means you pause or reconfirm long-inactive contacts. Pick a window that fits your cadence (a weekly brand and a quarterly brand differ). Write the policy down. Do not invent “Gmail requires 90 days.”

Q: What happens if you do not?

Provider filtering and reputation damage, not a fine for inactivity itself. Combined with trap and complaint signals, inactivity is how programmes quietly die.

How long can I keep emailing people who never open or click?

Global

In one sentence

Stop regular marketing to people who never engage — or re-ask . There is no magic universal day count from Gmail.

Plain English

Gmail and Yahoo tell to focus on people who want the mail. means you pause or reconfirm long-inactive contacts. Pick a window that fits your cadence (a weekly brand and a quarterly brand differ). Write the policy down. Do not invent “Gmail requires 90 days.”

Why it matters. Dead weight on the list drives complaints, traps, and weak engagement signals. A written is adult list hygiene.

Dotted words open definitions. Full glossary.

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.

expose last-open and last-click and can automate suppressions you configure. They will not invent your brand's correct window.

Your part: Choosing the window, the reconfirm path, and whether machine () count as engagement.

What to do first

Define one sentence: "We reconfirm or suppress after N days without a non-machine click or purchase." Put N in writing with the date you chose it. Then count how many profiles exceed N today.

You can skip this if: Your entire list is recent with no multi-year dormant tail.

Who this applies to

Any bulk or lifecycle programme with multi-year lists.

Checklist

01Do not attribute a specific day count to Gmail or Yahoo unless they publish one.
02Prefer clicks, purchases and replies over where inflates opens.
03Run a reconfirm campaign before mass suppression if the revenue risk is real.
04Separate legal (still valid) from deliverability engagement (no longer useful).

That’s enough to act. Sources and exact wording are below 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.

The exact position

Gmail and Yahoo tell to focus on willing, engaged recipients and to reconfirm or consider removing ones. Neither publishes a universal number of days. A sunset window is therefore a documented sender policy—tied to cadence and lifecycle—not a mailbox-provider statute. Mailing multi-year inactive addresses is also how recycled and complaint spikes form.

What happens if you do not

Provider filtering and reputation damage, not a fine for itself. Combined with trap and complaint signals, inactivity is how programmes quietly die.

Sources

Google, Email sender guidelines
Published 1 Feb 2024Read primary source
Yahoo Sender Best Practices
Published 1 Feb 2024Read primary source

History of this page

2 Aug 2026Added. Explicitly refuses a folklore day count.

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.