Google | Daily DMARC News

June 19, 2026
Google Postmaster Tools v2 Added a Deliverability Analysis Checklist -- And the 0.3% Spam Rate Is Now a Kill Switch
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 …
June 16, 2026
Google Filed a Lawsuit Over AI-Generated Phishing at Industrial Scale. Here Is What Every Domain Owner Should Do Now.
On June 12, 2026, Google filed a civil lawsuit against a China-based cybercrime network known as Outsider Enterprise. The complaint alleges that the group used Google’s own Gemini AI to generate phishing landing …

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