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SSL check results of gonicus.de

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Discover if the mail servers for gonicus.de can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

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Report created Thu, 26 Nov 2020 13:43:06 +0000

The mailservers of gonicus.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @gonicus.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail-1.gonicus.de
212.8.1.84
 0
supported
mail-1.gonicus.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
12 s

Outgoing Mails

We have received emails from these servers with @gonicus.de sender addresses. Test mail delivery

Host TLS Version & Cipher
mail-1.gonicus.de (212.8.1.84)
TLSv1.2 AECDH-AES256-SHA

Certificates

First seen at:

CN=mail-1.gonicus.de

Certificate chain
Subject
Common Name (CN)
  • mail-1.gonicus.de
Alternative Names
  • mail-1.gonicus.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-10-02
Not valid after
2020-12-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
F2:47:AB:B4:05:96:D8:5B:86:AC:69:FC:55:AA:D4:83:D5:D6:AD:5E:C9:D3:93:63:FA:BA:51:BD:03:80:36:D8
SHA1
C5:83:89:D8:7E:8B:57:72:00:3C:F7:5C:7A:50:A7:8C:52:C5:FD:27
X509v3 extensions
subjectKeyIdentifier
  • ED:B2:CF:61:72:19:90:D6:9F:CA:83:CA:1A:AD:9E:EA:8F:09:94:9C
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : Oct 2 06:04:55.597 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:82:A3:21:24:4B:76:66:DC:C7:4C:37:
  • F1:66:7A:A8:5B:64:AE:78:EE:83:13:50:37:18:04:7A:
  • 14:CB:C7:94:67:02:21:00:C8:D4:DA:47:22:03:03:3B:
  • 74:99:73:42:95:3C:A4:24:F7:89:31:7C:AD:74:C2:3F:
  • 96:1B:14:6B:0B:68:C2:5B
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Oct 2 06:04:55.663 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:51:09:F3:F2:9A:54:01:01:AD:73:F4:25:
  • 46:09:BD:28:DD:C4:EC:00:85:DC:34:48:08:3D:81:82:
  • 8D:5C:8D:25:02:21:00:A1:E8:7A:AA:50:90:31:02:FB:
  • 61:45:B5:AA:A8:7E:A2:9B:AD:17:DE:80:81:82:68:60:
  • 82:44:C9:B8:E3:5D:E9