SSL-Tools

SSL check results of klin-ok.com

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Discover if the mail servers for klin-ok.com 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, 03 Aug 2025 00:58:13 +0000

The mailservers of klin-ok.com can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @klin-ok.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
gateway.klin-ok.com
185.176.107.145
 5
supported
gateway.klin-ok.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
3 s

Outgoing Mails

We have not received any emails from a @klin-ok.com address so far. Test mail delivery

Certificates

First seen at:

CN=gateway.klin-ok.com

Certificate chain
  • gateway.klin-ok.com
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • gateway.klin-ok.com
Alternative Names
  • gateway.klin-ok.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-08-02
Not valid after
2025-10-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D4:34:66:4B:A2:E3:4C:C8:EC:D2:F3:B4:67:7B:24:DF:E5:89:E4:1D:79:3E:78:F1:82:F4:14:9F:26:47:1C:DD
SHA1
C3:C6:73:47:12:57:84:69:12:93:B8:B9:90:79:44:13:0C:11:F1:EE
X509v3 extensions
subjectKeyIdentifier
  • 76:C1:BE:10:AF:B8:6D:83:FD:21:0C:AE:93:7F:6F:8E:61:00:C2:14
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r10.c.lencr.org/125.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A4:42:C5:06:49:60:61:54:8F:0F:D4:EA:9C:FB:7A:2D:
  • 26:45:4D:87:A9:7F:2F:DF:45:59:F6:27:4F:3A:84:54
  • Timestamp : Aug 2 23:43:40.046 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:20:39:07:6D:51:D0:95:40:68:86:1F:9F:
  • 3E:69:F1:EE:50:7F:B4:81:8D:AA:62:AF:9D:64:35:E2:
  • 7C:33:B6:C2:02:20:0D:56:2C:F8:53:94:FB:53:FD:97:
  • E0:A9:98:1D:44:47:12:B3:48:2E:67:46:41:64:F3:96:
  • 52:30:BD:C5:D5:F2
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0D:E1:F2:30:2B:D3:0D:C1:40:62:12:09:EA:55:2E:FC:
  • 47:74:7C:B1:D7:E9:30:EF:0E:42:1E:B4:7E:4E:AA:34
  • Timestamp : Aug 2 23:43:40.045 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D8:80:8C:73:03:4C:FC:D2:FB:F3:4A:
  • 15:A2:0B:17:3E:5C:02:DD:73:29:04:CD:9A:71:40:45:
  • 33:8E:D2:77:C8:02:20:57:AE:0C:15:D7:2A:76:6A:E3:
  • BD:FB:C0:D7:DD:3A:23:B7:9B:57:3E:02:F1:3D:CD:7F:
  • CD:83:27:23:CC:0F:7E