Glossary/Email & Lifecycle/Bulk Sender Requirements
Email & Lifecycle
Bulk Sender Requirements
Gmail and Yahoo rules since 2024 requiring high-volume senders to authenticate, offer one-click unsubscribe and keep spam rates below 0.3%.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
Bulk sender requirements are Gmail and Yahoo rules, in effect since 2024, requiring high-volume senders to authenticate their email, offer one-click unsubscribe and keep spam complaint rates below 0.3%. Authentication includes SPF, DKIM and DMARC. Senders that fail to comply risk having messages throttled, sent to spam or rejected.