From Confusion to Clarity: Red Sift Breaks Down Google and Yahoo’s Email Security Requirements

This article explains Google and Yahoo’s new bulk sender rules effective February 1, 2024, detailing required email authentication (SPF/DKIM with alignment, DMARC policy ≥ none, FCrDNS, TLS), one-click unsubscribe by June 1, and maintaining spam complaint rates below 0.3% (ideally <0.1%), along with a gradual enforcement timeline beginning with temporary errors in February and increasing rejections from April; it also notes special considerations for organizations using multiple sending services and points to SecurityScorecard and Red Sift tools to verify compliance.