Google + Yahoo bulk sender rules (2024) made deliverabilityharder. Here is the 2026 checklist.
Required technical setup
- →SPF record, points to your email platform
- →DKIM signing, verify domain
- →DMARC policy, p=reject or at minimum p=quarantine
- →BIMI (bonus), branded inbox logos
- →One-click unsubscribe headers
Operational rules
- →Sunset unengaged (180+ days no open) aggressively
- →Spam complaint rate under 0.1%
- →Bounce rate under 2%
- →Consistent send volume (no 10x spikes)
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