The 0.3% Spam Complaint Threshold: How Postmaster Tools Actually Calculate It
Gmail enforces a 0.3% user-reported spam ceiling, but the denominator is inboxed mail, and not sent volume. How the rate is computed and how to stay under it.
#Bulk Sender Requirements
3 articles with this tag
One-Click Unsubscribe (RFC 8058): Implementation Pitfalls Most Senders Miss
RFC 8058 one-click unsubscribe is mandatory for bulk senders. The five implementation mistakes that fail compliance and how to test your endpoint properly.
Yahoo and Gmail's February 2024 Bulk Sender Requirements: A Compliance Checklist
The complete compliance checklist for Yahoo and Gmail's February 2024 bulk sender requirements. Authentication, unsubscribe, complaint rates—what you actually need.