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SSL check results of kueck.org

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Discover if the mail servers for kueck.org 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

JSON Refresh

Report created Sun, 05 Jul 2020 03:15:15 +0000

The mailservers of kueck.org can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @kueck.org addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.kueck-edv.de
5.9.5.126
 10
supported
kueck-edv.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s

Outgoing Mails

We have not received any emails from a @kueck.org address so far. Test mail delivery

Certificates

First seen at:

CN=kueck-edv.de

Certificate chain
Subject
Common Name (CN)
  • kueck-edv.de
Alternative Names
  • *.kueck-edv.de
  • kueck-edv.de
  • saschakueck.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-06-02
Not valid after
2020-08-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B8:42:6A:FD:F6:8F:6A:16:39:9C:8D:04:9A:BD:A9:0A:5D:C7:0D:1E:24:75:7E:AC:DA:4A:CF:31:FD:45:99:88
SHA1
55:1F:B7:5A:C9:9E:D1:09:D3:65:95:95:FA:23:8C:32:7C:AA:CD:14
X509v3 extensions
subjectKeyIdentifier
  • CB:82:B5:4E:D3:4A:4F:3A:C9:21:9F:F6:38:91:FC:05:DD:BB:A5:07
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 : E7:12:F2:B0:37:7E:1A:62:FB:8E:C9:0C:61:84:F1:EA:
  • 7B:37:CB:56:1D:11:26:5B:F3:E0:F3:4B:F2:41:54:6E
  • Timestamp : Jun 2 14:47:31.793 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:21:00:95:4D:5A:25:D8:E7:A0:BD:83:5B:C6:
  • 81:75:40:40:8C:09:6D:71:67:7C:D5:A9:76:B7:C4:8A:
  • E4:6F:B4:71:C1:02:1F:59:5E:CC:D1:37:26:A2:BF:F2:
  • 96:C6:65:FC:FE:3D:75:81:95:0C:7F:FC:9B:24:4F:B7:
  • C1:70:C2:20:4C:4A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : Jun 2 14:47:31.780 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:C8:D3:52:61:AB:4D:0D:B4:C7:0B:83:
  • 95:49:42:01:7E:98:B9:45:51:36:EA:8C:DC:89:16:D6:
  • E5:78:E9:10:32:02:20:3B:46:B8:40:F9:1E:F6:B0:7D:
  • DB:3F:FA:31:F8:08:DF:48:03:C8:64:30:90:5B:3A:6F:
  • FB:3E:23:4A:C9:EE:BD