open-cmmc-stack/evidence/04_email/evidence.md

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✉️ Evidence Secure Email Configuration

Purpose

Evidence related to the secure deployment and configuration of Mailcow for sending and receiving secure communications.

Included Artifacts

  • TLS/DKIM/SPF reports
  • SSO integration with Keycloak
  • Mail logs for delivery success and rejection
  • Email relay and filter rules

Review Checklist

  • DKIM keys configured and tested
  • TLS enforced on all SMTP/IMAP traffic
  • Mailcow access restricted via Tailscale ACLs