SMTP Security Tools
Protect your inbound email traffic from Man-in-the-Middle (MITM) downgrade attacks. Execute real-time DoH queries to strictly audit MTA-STS enforcement policies, verify active TLS-RPT (TLS Reporting) configurations, and guarantee transport security integrity with absolutely zero simulated data.
Standard SMTP encryption (STARTTLS) is vulnerable to Man-in-the-Middle (MITM) downgrade attacks. Modern security standards demand MTA-STS and TLS-RPT records to force encrypted connections. Enter your domain to audit your transport security enforcement.
Relying purely on STARTTLS is no longer enough for enterprise security. You must prove to external servers that you demand encrypted connections.
STARTTLS command, forcing the email to be sent in plaintext. MTA-STS prevents this._smtp._tls reporting record active._mta-sts and _smtp._tls) concurrently to instantly build your security profile.Your feedback has been submitted successfully. We appreciate your help in improving our tools.