MTA-STS Checker

Pro

Check MTA-STS configuration

Overview

Check Mail Transfer Agent Strict Transport Security (MTA-STS) configuration. Verify DNS records and HTTPS policy files for enforcing TLS in email delivery.

Key Features

  • DNS record check
  • Policy file verification
  • Mode detection
  • MX validation

Use Cases

  • Email transport security
  • TLS enforcement verification
  • Email hardening

Try MTA-STS Checker

Download xutil from the App Store and start using it right away.

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