Google already knows which send did it.
Postmaster shows you one number a day: the share of Gmail users who marked your mail as spam. Google’s line is 0.10%. This domain crossed it on 23 of 52 days.
A real domain’s published days. The dots are the days over the line.
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Google names the send. It is in the Postmaster tab you have never opened.
Each string is an id Klaviyo stamped on a send, and each carries its own spam rate for the day. The ones above the line are your problem.
Postmaster stops here.
You looked once. The strings matched nothing. So you stopped.
Campaign ids match at once. Flow ids match nothing, because Google publishes the message id, not the flow. SpamSpike indexes every flow message, so those resolve too.
One live account, 90 days: 376 of 502 strings named. The rest are marked unknown, never guessed. Hover the chart.Tap a stem.
One flow. 78% of what Google attributed. Still running tonight.
Every send Google rated, ranked by how much of the window Google attributed to it, with its worst day. Fix it, and the re-measure starts the day you did.
A worked example. The curve is a real domain’s; the names are invented.
One flow carries 78% of what Google attributed.
Gmail feedback loop · 52 days · 26 rated days · data through Sep 18
3 of 110 sends · 88.4% of the window
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One flow carries 78% of what Google attributed.
Gmail feedback loop · 52 days · 26 rated days · data through Sep 18
3 of 110 sends · 88.4% of the window
What we cannot tell you.
These limits are Google’s. We say them before the price does.
- whoNot which person complained. Google never publishes that. Nobody can sell it to you.
- whenOnce a day, per domain. Postmaster publishes daily totals, about two days behind, and only above its own volume bar.
- unknownA string we cannot match stays unknown. We never pin it on the nearest send.
- 0.30%Over 0.30% does not get you rejected. Google’s own table says “Delivery support or mitigations unavailable”. Rejections are for SPF, DKIM, TLS and From alignment.
- volumeUnder about 5,000 Gmail-bound emails a day, expect gaps or nothing. Google does not publish the bar. That is where we see it.
Connect Postmaster and Klaviyo. Name the send.
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