Email Auth Rescue Card

Email Auth Rescue Card turns one domain, email host, and sending stack into a same-day public-DNS report with exact SPF and DMARC changes, current MX/SPF/DMARC/DKIM signals, lookup-count notes, and verification commands. It is built for founders and operators whose receipts, onboarding emails, proposals, or newsletters are getting Gmail/Yahoo authentication errors or landing in spam. No passwords, DNS login, inbox access, account access, or customer data required.