Microsoft and Google DMARC Reports Ignore Syntax Errors

February 21, 2025

Even with major DMARC syntax errors, Microsoft and Google still generate aggregate reports, potentially misleading email security monitoring.

Email Security
Email Security
•
1
min read
Microsoft and Google DMARC Reports Ignore Syntax Errors

Microsoft and Google reporters overlook syntax errors in the DMARC policy, continuing to deliver aggregate reports even when faced with significant syntax inaccuracies beyond the policy tag.

DMARC
Email Security
Email Deliverability
Microsoft
Google
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