Summary of mail.ccc.de:25 (SMTP) SSL Security Test
Provided "as is" without any warranty of any kind.
This test was made 96 days ago and may be outdated
Refresh Test
Date/Time:Jul 31st, 2026 14:01 GMT+0
Source IP/Port:212.12.55.66:25
Protocol:SMTP
Location:Hamburg, Germany
Your final score:
- A
- B
- C
- F
C+
Email server's DKIM is properly set.
Good configuration
The server supports the most recent and secure TLS protocol version of TLS 1.3.
Good configuration
The tested service seems to be a SMTP.
Information
Test Results Summary for mail.ccc.de
- The server on the tested port is currently not prepared for post-quantum key exchange. The server’s certificate chain relies entirely on classical signature algorithms without post-quantum support. Show details.
- 1 SSL/TLS end-entity certificate detected: the first certificate is a trusted RSA 2048 bits certificate with issuer YR2 valid until October 5, 2026. 1 certificate chain detected. Show details.
- 8 of 25 supported cipher suites are not compliant with PCI DSS. The server supports only PCI DSS compliant protocols: TLSv1.2 and TLSv1.3. All supported elliptic curves are compliant with PCI DSS: P-384, P-521, P-256, X25519 and X448. There is 1 more issue which makes the server non-compliant with PCI DSS: potential Marvin Attack. Show details.
- 11 of 25 supported cipher suites are not compliant with HIPAA requirements (Ref. NIST SP 800-52). The server supports only HIPAA compliant protocols: TLSv1.2 and TLSv1.3. All supported elliptic curves are compliant with HIPAA: P-384, P-521, P-256, X25519 and X448. There is 1 more issue which makes the server non-compliant with HIPAA: certificate does not include an OCSP responder url. Show details.
- 1 issue related to industry best practices was identified: server does not have cipher preference. Show details.
Compliance Summary for mail.ccc.de
- PCI DSS Compliance Failed: 8 of 25 supported cipher suites are not compliant with PCI DSS. The server supports only PCI DSS compliant protocols: TLSv1.2 and TLSv1.3. All supported elliptic curves are compliant with PCI DSS: P-384, P-521, P-256, X25519 and X448. There is 1 more issue which makes the server non-compliant with PCI DSS: potential Marvin Attack.
- HIPAA Compliance Failed: 11 of 25 supported cipher suites are not compliant with HIPAA requirements (Ref. NIST SP 800-52). The server supports only HIPAA compliant protocols: TLSv1.2 and TLSv1.3. All supported elliptic curves are compliant with HIPAA: P-384, P-521, P-256, X25519 and X448. There is 1 more issue which makes the server non-compliant with HIPAA: certificate does not include an OCSP responder url.
- GDPR Compliance Failed: 8 of 25 supported cipher suites are not compliant with GDPR. The server supports only GDPR compliant protocols: TLSv1.2 and TLSv1.3. All supported elliptic curves are compliant with GDPR: P-384, P-521, P-256, X25519 and X448. There is 1 more issue which makes the server non-compliant with GDPR: potential Marvin Attack.
