SenderGuard

DMARC policy: none → quarantine → reject — staging plan

Stage DMARC to protect deliverability while moving toward enforcement. This plan balances safety and speed by fixing alignment sources first and then raising policy.

Verify

  1. Start with p=none, collect rua reports
  2. Fix sources failing alignment; validate with audit & PDF evidence
  3. Move to p=quarantine, then p=reject