SSL-Tools

SSL check results of kjim-zillner.de

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Discover if the mail servers for kjim-zillner.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 Sat, 18 Apr 2026 06:42:33 +0000

The mailservers of kjim-zillner.de can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @kjim-zillner.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx.zillner-net.de
194.37.80.106
 10
supported
mx.zillner-net.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
relay.rzone.de
81.169.145.96
Results incomplete
100
supported
relay.rzone.de
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 @kjim-zillner.de address so far. Test mail delivery

Certificates

First seen at:

CN=relay.rzone.de,O=STRATO GmbH,ST=Berlin,C=DE

Certificate chain
Subject
Country (C)
  • DE
State (ST)
  • Berlin
Organization (O)
  • STRATO GmbH
Common Name (CN)
  • relay.rzone.de
Alternative Names
  • relay.rzone.de
  • www.relay.rzone.de
Issuer
Country (C)
  • GB
Organization (O)
  • Sectigo Limited
Common Name (CN)
  • Sectigo Public Server Authentication CA OV R36
validity period
Not valid before
2026-02-19
Not valid after
2027-02-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
51:76:4E:DB:A5:11:FE:D5:73:55:98:DE:3C:3A:C9:F9:74:F2:BA:0C:04:69:D1:EC:64:EE:18:45:15:17:90:63
SHA1
1F:2D:7D:51:33:D2:7F:C4:A0:77:F9:86:71:5F:63:13:B3:10:A0:C2
X509v3 extensions
authorityKeyIdentifier
  • keyid:E3:66:74:BB:70:68:8D:2C:5D:4E:0E:A6:4A:8F:9B:37:22:9C:82:92
subjectKeyIdentifier
  • 00:9B:39:0F:EB:E4:B3:8B:5F:44:91:AC:A2:7F:C1:E3:F0:1B:EE:80
certificatePolicies
  • Policy: 1.3.6.1.4.1.6449.1.2.1.3.4
  • CPS: https://sectigo.com/CPS
  • Policy: 2.23.140.1.2.2
crlDistributionPoints
  • Full Name:
  • URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationCAOVR36.crl
authorityInfoAccess
  • CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCAOVR36.crt
  • OCSP - URI:http://ocsp.sectigo.com
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99:
  • EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9
  • Timestamp : Feb 19 14:03:42.163 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:A4:06:DC:B9:C6:9E:56:59:2A:C8:C6:
  • 01:67:CA:DC:B1:E6:1C:3D:AB:D5:34:51:AE:B8:DE:2B:
  • A5:3A:22:9E:EB:02:20:45:77:C5:14:4E:FD:38:2F:B2:
  • 1C:63:27:CA:A7:D3:8E:44:2A:D5:59:67:14:71:53:82:
  • D5:93:B9:E2:D7:EB:40
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46:
  • FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8
  • Timestamp : Feb 19 14:03:42.774 2026 GMT
  • Extensions: 00:00:05:00:02:DF:E4:16
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:4A:45:43:FE:0B:87:A7:8F:E8:48:6A:D7:
  • 56:45:9D:C4:EF:FA:9F:57:70:FC:41:44:F0:45:BF:D1:
  • E4:42:F9:D5:02:21:00:DB:B2:33:AE:5E:AD:74:A5:AA:
  • 36:2D:B9:D8:29:AA:ED:BC:F7:79:70:38:BD:19:87:7C:
  • DB:E1:63:CA:E9:F8:67
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90:
  • 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59
  • Timestamp : Feb 19 14:03:42.634 2026 GMT
  • Extensions: 00:00:05:00:00:2A:3B:FD
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:11:53:2E:57:BD:12:82:6D:D9:3A:50:05:
  • BC:AE:E8:B1:FB:B4:85:C1:5D:8A:5E:B1:43:F4:9F:3A:
  • C8:AF:36:74:02:20:12:29:48:8E:45:67:2E:00:FD:00:
  • E0:E2:02:AA:D8:C3:4E:40:43:66:48:0B:76:5B:B2:5A:
  • 8A:E8:11:2C:11:21
First seen at:

CN=mx.zillner-net.de

Certificate chain
  • mx.zillner-net.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R12
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mx.zillner-net.de
Alternative Names
  • mx.zillner-net.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R12
validity period
Not valid before
2026-04-18
Not valid after
2026-07-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
DB:8F:2C:5A:78:6F:2E:AF:17:BD:B4:BC:C3:ED:B0:A7:5D:6F:13:0A:A7:93:86:AE:21:23:F3:35:FA:C3:A8:31
SHA1
6E:1C:C6:75:A6:C8:19:60:9C:4B:21:36:96:30:D3:54:2B:50:C8:AC
X509v3 extensions
subjectKeyIdentifier
  • F7:10:4B:BB:B4:35:E1:DF:D8:D6:90:95:A1:9E:6A:93:0F:35:87:0F
authorityKeyIdentifier
  • keyid:00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
authorityInfoAccess
  • CA Issuers - URI:http://r12.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r12.c.lencr.org/85.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
  • C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
  • Timestamp : Apr 18 06:41:31.774 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:6F:58:73:AB:DE:22:BB:12:C7:87:81:5B:
  • 7D:DA:3D:51:C1:A0:D3:D8:8F:45:B5:53:D8:D3:AA:DB:
  • 4D:EF:05:1C:02:21:00:9C:96:A3:D5:2F:30:62:F7:40:
  • 40:B7:A0:EE:00:F0:CC:08:A7:6E:B7:43:86:0C:4B:2D:
  • 10:DD:2F:D4:9E:AD:D4
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0:
  • D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F
  • Timestamp : Apr 18 06:41:31.930 2026 GMT
  • Extensions: 00:00:05:00:04:31:2C:64
  • Signature : ecdsa-with-SHA256
  • 30:44:02:1F:26:0D:45:12:48:BE:FA:C8:82:7C:A2:4D:
  • 75:42:79:25:0D:6F:E9:EA:C9:84:D1:4B:61:E0:82:0C:
  • 1E:89:D4:02:21:00:BE:AC:90:4A:5C:CA:9A:74:31:5A:
  • F6:C2:B6:56:2D:6A:09:F9:F2:C6:78:B1:06:E8:B2:0F:
  • B5:03:4A:26:3D:AB