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SSL check results of cn2480756-mail.coolnic.de

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Discover if the mail servers for cn2480756-mail.coolnic.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

JSON Refresh

Report created Wed, 19 Feb 2025 01:38:29 +0000

The mailservers of cn2480756-mail.coolnic.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @cn2480756-mail.coolnic.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
cn2480756-mail.coolnic.de
212.224.79.43
 -
supported
*.coolnic.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @cn2480756-mail.coolnic.de address so far. Test mail delivery

Certificates

First seen at:

CN=*.coolnic.de

Certificate chain
Subject
Common Name (CN)
  • *.coolnic.de
Alternative Names
  • *.coolnic.de
  • coolnic.de
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • GlobalSign GCC R6 AlphaSSL CA 2023
validity period
Not valid before
2024-07-22
Not valid after
2025-08-23
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
06:7E:4D:8C:43:1D:63:56:78:BF:7B:83:11:90:99:B0:F3:EA:BF:64:66:00:D2:A4:98:A8:DA:18:29:C4:74:B2
SHA1
A6:8F:C3:3A:DD:84:BA:9D:C0:80:60:EE:63:CE:5F:7E:ED:12:26:43
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr6alphasslca2023.crt
  • OCSP - URI:http://ocsp.globalsign.com/gsgccr6alphasslca2023
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.4146.10.1.3
  • CPS: https://www.globalsign.com/repository/
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/gsgccr6alphasslca2023.crl
authorityKeyIdentifier
  • keyid:BD:05:B7:F3:8A:93:3C:73:CB:79:FA:0F:85:12:A1:77:96:18:91:74
subjectKeyIdentifier
  • D2:54:55:02:D2:99:41:76:2A:C5:8D:06:F5:E9:A1:C0:9F:7C:A7:DC
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : AF:18:1A:28:D6:8C:A3:E0:A9:8A:4C:9C:67:AB:09:F8:
  • BB:BC:22:BA:AE:BC:B1:38:A3:A1:9D:D3:F9:B6:03:0D
  • Timestamp : Jul 22 11:03:29.665 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:12:D7:46:29:D7:62:9C:97:7C:E7:B2:BC:
  • D7:64:FB:B2:D2:AF:1E:F5:40:24:38:E5:08:23:9A:21:
  • 1D:41:BF:E5:02:21:00:9B:C8:0A:F7:98:FE:A4:AB:B6:
  • 9A:FE:38:79:3D:96:EA:A7:43:50:76:39:E3:D6:01:0F:
  • 78:6E:F1:79:D0:2A:3A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 1A:04:FF:49:D0:54:1D:40:AF:F6:A0:C3:BF:F1:D8:C4:
  • 67:2F:4E:EC:EE:23:40:68:98:6B:17:40:2E:DC:89:7D
  • Timestamp : Jul 22 11:03:29.825 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:DA:F2:94:72:69:19:17:37:73:CA:A0:
  • 7F:FB:5B:6A:97:7B:00:C3:AC:0B:43:FA:E8:C7:00:1C:
  • 22:E9:1E:09:28:02:20:19:24:CE:15:02:F9:D0:EE:89:
  • 5A:1C:A3:8B:9E:E5:28:BC:FB:E1:11:E0:D8:C8:DB:DD:
  • FB:AC:F6:EA:A9:DA:13
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13:
  • F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A
  • Timestamp : Jul 22 11:03:29.929 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F6:83:3F:58:5B:49:F9:8C:80:1D:F5:
  • 67:2A:E7:06:ED:1F:20:0E:D8:6F:3F:2D:F7:77:22:2D:
  • CD:63:1F:03:5A:02:21:00:FD:71:09:C6:1A:70:8E:8F:
  • 23:AA:1C:64:B7:28:EA:17:71:70:FE:07:90:E3:CC:87:
  • D0:34:F4:0D:18:04:12:17