SSL-Tools

SSL check results of kappler-cnc.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for kappler-cnc.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, 26 Jun 2025 11:47:25 +0000

We can not guarantee a secure connection to the mailservers of kappler-cnc.de!

Please contact the operator of kappler-cnc.de and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/kappler-cnc.de

Servers

Incoming Mails

These servers are responsible for incoming mails to @kappler-cnc.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mailserver.kappler-cnc.de
217.91.203.85
 10
supported
mailserver.kappler-cnc.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mail.kappler-cnc.de
109.237.130.107
Results incomplete
100
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=mailserver.kappler-cnc.de

Certificate chain
Subject
Common Name (CN)
  • mailserver.kappler-cnc.de
Alternative Names
  • mailserver.kappler-cnc.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2024-07-14
Not valid after
2024-10-12
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
89:44:40:F2:1F:6B:24:8A:96:14:B9:5D:C7:A8:1F:B4:82:90:79:5F:D8:E4:98:3A:4F:85:ED:4B:CC:75:0F:6F
SHA1
86:01:D2:4A:A4:22:EF:42:63:5B:59:BF:99:C6:E3:8C:90:94:BC:9D
X509v3 extensions
subjectKeyIdentifier
  • EE:57:8F:99:06:83:E5:E5:DD:ED:AA:00:A0:8B:57:01:CA:AF:C3:62
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 3F:17:4B:4F:D7:22:47:58:94:1D:65:1C:84:BE:0D:12:
  • ED:90:37:7F:1F:85:6A:EB:C1:BF:28:85:EC:F8:64:6E
  • Timestamp : Jul 15 00:03:05.821 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:EC:C9:59:84:96:E1:D5:67:99:09:95:
  • 21:85:3B:F9:64:69:F0:A8:BA:28:53:E4:83:18:EE:50:
  • 29:7E:30:D9:D1:02:21:00:BB:47:44:FE:48:9E:85:D3:
  • B4:41:F3:8F:F1:07:D4:37:42:5A:C5:1B:16:D8:04:68:
  • 17:F3:60:A7:08:C3:B4:62
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 19:98:10:71:09:F0:D6:52:2E:30:80:D2:9E:3F:64:BB:
  • 83:6E:28:CC:F9:0F:52:8E:EE:DF:CE:4A:3F:16:B4:CA
  • Timestamp : Jul 15 00:03:05.828 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:05:23:F4:7B:33:88:B7:CC:A8:38:84:68:
  • CE:66:20:15:57:A3:5D:4A:6E:11:D3:E6:36:28:FD:F8:
  • 32:AA:6E:0B:02:20:26:DF:7C:6C:6D:CB:5C:ED:A9:29:
  • 3E:12:C2:9B:E6:76:80:D0:45:CB:F8:8A:63:37:69:9B:
  • 62:98:A3:2B:8C:CE