
What Requires Attention
The BIG Questions
Domain Overview
Technical Findings
Email Authentication
Mail Transport Security
DNS Security
Brand & Certificate Controls
Priority Actions 4 total Achievable: Low Risk
Publish an MTA-STS DNS record and host a policy file at https://mta-sts.yourdomain.com/.well-known/mta-sts.txt. This tells senders to require TLS when delivering mail to your domain.
Your DMARC policy is quarantine — spoofed messages are flagged. Upgrading to p=reject blocks them entirely. Review aggregate reports to confirm legitimate senders are aligned.
TLS-RPT (TLS Reporting) sends you reports about TLS connection failures when other servers try to deliver mail to your domain. Helps diagnose MTA-STS and STARTTLS issues.
DNSSEC (DNS Security Extensions) cryptographically signs DNS responses, preventing attackers from forging DNS answers. Contact your DNS hosting provider to enable DNSSEC signing.
Appendix — Additional Resources
Full technical details including raw DNS records, DKIM public keys, IP/ASN mappings, resolver consensus evidence, and verification commands are available in the Engineer's DNS Intelligence Report.
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