Google Postmaster Tools v2 Added a Deliverability Analysis Checklist -- And the 0.3% Spam Rate Is Now a Kill Switch

Fri, 19 Jun 2026 08:00:00 +0000

For years, Google Postmaster Tools gave senders a reputation label – High, Medium, Low, or Bad – and left them to figure out what was causing the problem. The labels were opaque by design. You could watch your reputation slide from High to Medium and have no direct signal as to whether the culprit was your SPF configuration, your DKIM signing, your list quality, or something else entirely.

That model is gone. Google retired Postmaster Tools v1 in 2026, and in early June the company added a new Deliverability Analysis section to the Compliance Status page in v2. The new section replaces the reputation label system with an explicit compliance checklist. You can now see exactly which authentication requirement is failing, exactly where your spam rate sits relative to the thresholds that trigger enforcement, and exactly what is sending your mail to the spam folder or to outright rejection.

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Google Postmaster Tools v2 Added a Deliverability Analysis Checklist -- And the 0.3% Spam Rate Is Now a Kill Switch