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  1. Providers
  2. ›Cloudflare
  3. ›Email security
  4. ›Update

Feature•Apr 6, 2026

DANE Support for MX Deployments

Email securityCloudflare · Cloudflare One

Cloudflare Email Security now supports DANE (DNS-based Authentication of Named Entities) for MX deployments. This enhancement strengthens email transport security by enabling DNSSEC-backed certificate verification for our regional MX records.

  • Regional MX hostnames now publish DANE TLSA records backed by DNSSEC, enabling DANE-capable SMTP senders to cryptographically validate certificate identities before establishing TLS connections—moving beyond opportunistic encryption to verified encrypted delivery.
  • DANE support is automatically available for all customers using regional MX deployments. No additional configuration is required; DANE-capable mail infrastructure will automatically validate MX certificates using the published records.

This applies to all Email Security packages:

  • Advantage
  • Enterprise
  • Enterprise + PhishGuard

Read the original announcement↗

More from Email security

All Email security updates →

  1. Post-quantum key exchange for MX deployments

    Cloudflare Email Security now supports post-quantum hybrid key exchange with X25519MLKEM768 on the SMTP connections we make to receive and deliver mail.

    Email security•Feature•Aug 17, 2026

  2. Block emails by content with blocked content rules

    Cloudflare Email security now lets administrators write their own content-based blocking rules.

    Email security•Feature•Aug 12, 2026

  3. Cloudy Summaries in PhishNet O365

    PhishNet users can now access Cloudy summaries directly within the email investigation experience. When reviewing a message in PhishNet, users will see an AI-generated summary that provides additional context and key details about the email.

    Email security•Feature•May 6, 2026

  4. User Submission Triage Status Tracking

    Cloudflare Email security now supports Triage Status Tracking for User Submissions. This enhancement gives SOC teams a streamlined way to track, manage, and prioritize user-submitted emails directly within the Cloudflare One dashboard.

    Email security•Feature•Apr 7, 2026

  5. Unlimited result paging in Investigations

    Investigations now support unlimited result paging in both the dashboard and the API, removing the previous 1,000-record cap.

    Email security•Feature•Mar 15, 2026