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SSL check results of cn2480271-mail.coolnic.de

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Discover if the mail servers for cn2480271-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 Thu, 28 Mar 2024 11:03:25 +0000

The mailservers of cn2480271-mail.coolnic.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @cn2480271-mail.coolnic.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
cn2480271-mail.coolnic.de
79.133.36.166
 -
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 @cn2480271-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)
  • AlphaSSL CA - SHA256 - G4
validity period
Not valid before
2023-06-27
Not valid after
2024-07-28
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
0D:89:BE:8D:13:65:46:BA:E8:05:44:E3:85:EC:D4:B7:CE:66:84:5B:C7:AF:AE:C9:38:99:8E:45:1C:9F:B9:F0
SHA1
B4:1F:75:28:F4:4E:B2:A2:54:FF:29:27:BE:54:EB:56:24:E3:C2:B0
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/alphasslcasha256g4.crt
  • OCSP - URI:http://ocsp.globalsign.com/alphasslcasha256g4
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/alphasslcasha256g4.crl
authorityKeyIdentifier
  • keyid:4F:CB:AC:A8:C2:EF:AB:DD:83:6F:6B:BF:CE:98:3D:5C:58:25:76:15
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 : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Jun 27 10:57:33.048 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:05:EA:AE:57:7B:F3:81:57:95:E6:00:FA:
  • DC:8B:97:89:C8:CA:CF:E6:9B:CD:CB:28:1D:23:6B:EE:
  • F1:15:45:9D:02:21:00:A0:E5:71:33:9F:32:D8:41:9E:
  • F7:72:D6:B1:F1:ED:A6:B2:BD:60:70:8A:5D:CD:D4:AA:
  • 6D:0C:27:71:86:2A:F1
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Jun 27 10:57:33.432 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:53:6C:44:57:BD:76:44:64:B5:88:68:CD:
  • 9F:34:3C:4A:9F:C5:C2:8F:6B:B6:84:58:7B:F4:13:49:
  • C5:84:11:7B:02:21:00:ED:B3:59:E7:27:F5:65:7B:91:
  • 21:88:56:ED:41:41:F2:93:41:28:79:A3:30:B5:4F:DB:
  • 92:DE:C3:9E:90:33:AE
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
  • 91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
  • Timestamp : Jun 27 10:57:32.762 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:43:22:56:95:E0:DA:AF:31:B5:34:A8:7D:
  • 1C:EE:FA:8E:42:3D:F9:2A:27:72:D9:F8:C4:5E:F9:66:
  • 8A:7A:BA:5D:02:21:00:C4:E0:DF:ED:FA:06:8E:7D:44:
  • E0:69:79:40:B6:31:7B:58:BB:DA:00:80:4F:63:E9:DC:
  • 9D:21:09:FC:4A:FE:95