Gmail’s 2024 rules are tightening inboxes even for clean lists
In 2024 Gmail and Yahoo rolled out mandatory SPF/DKIM/DMARC authentication, tighter spam‑complaint thresholds and stricter unsubscribe handling. Those changes now penalize bulk senders—even those with clean lists and relevant content—dropping inbox placement. Marketers must audit authentication, tighten consent and monitor reputation to keep campaigns effective.