SSL-Tools

SSL check results of polenske.net

NEW You can also bulk check multiple servers.

Discover if the mail servers for polenske.net 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, 08 Jul 2026 02:49:32 +0000

We can not guarantee a secure connection to the mailservers of polenske.net!

Please contact the operator of polenske.net and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/polenske.net

Servers

Incoming Mails

These servers are responsible for incoming mails to @polenske.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.polenske.net
2a01:239:4d1:5400::1
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail.polenske.net
31.70.106.82
 10
supported
mail.polenske.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mailin.selfhost.de
95.143.172.45
 60
supported
*.selfhost.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.0
  • SSLv3
2 s
mailin.selfhost.de
95.143.172.46
 60
supported
*.selfhost.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.0
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @polenske.net address so far. Test mail delivery

Certificates

First seen at:

CN=mail.polenske.net

Certificate chain
  • mail.polenske.net
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • YE2
        • remaining
        • 384 bit
        • ecdsa-with-SHA384
          • Root YE
            • remaining
            • 384 bit
            • ecdsa-with-SHA384
              • ISRG Root X2 (Certificate is self-signed.)
                • remaining
                • 384 bit
                • ecdsa-with-SHA384
Subject
Common Name (CN)
  • mail.polenske.net
Alternative Names
  • mail.polenske.net
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YE2
validity period
Not valid before
2026-07-04
Not valid after
2026-10-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
1A:CC:9A:E2:CF:63:A4:3A:27:5E:7F:12:B3:C7:E8:15:DF:A3:71:2C:99:59:05:30:A4:E7:77:CB:C1:0F:F1:AA
SHA1
8A:AD:EC:4B:AB:B3:B3:4E:B5:5B:E5:53:BC:62:0A:5D:F7:E0:1D:F1
X509v3 extensions
subjectKeyIdentifier
  • 01:C1:67:0A:2F:BA:EF:5A:6B:A1:62:6C:DB:EF:64:8A:9F:14:25:EF
authorityKeyIdentifier
  • keyid:B9:59:F2:8E:CF:22:F0:86:D3:37:48:FF:76:14:18:BA:82:D8:55:87
authorityInfoAccess
  • CA Issuers - URI:http://ye2.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://ye2.c.lencr.org/87.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
  • 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
  • Timestamp : Jul 4 08:24:13.128 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:7E:A1:92:68:80:91:8A:8C:9E:CD:C8:9D:
  • 96:49:36:0F:EF:69:F0:11:A2:FC:40:ED:E1:ED:DC:BC:
  • 47:F9:B8:D1:02:20:5A:19:BF:1A:8F:CF:60:23:8B:83:
  • C6:30:52:D2:B9:CF:E0:D4:58:C7:BC:D8:3B:17:D5:92:
  • 12:B6:98:E0:91:27
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86:
  • D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF
  • Timestamp : Jul 4 08:24:13.726 2026 GMT
  • Extensions: 00:00:05:00:26:07:03:F8
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:3A:80:BE:E8:9D:E7:A2:15:88:49:F5:57:
  • 84:26:40:60:1B:D7:E3:F1:56:DB:EB:DD:17:1B:65:A5:
  • E8:C9:CA:96:02:20:1C:EF:55:22:65:F0:C5:E1:04:7A:
  • C4:25:96:1A:BB:08:A2:16:00:74:F3:DD:50:A1:68:BA:
  • CC:DB:43:56:5E:79
First seen at:

CN=*.selfhost.de

Certificate chain
Subject
Common Name (CN)
  • *.selfhost.de
Alternative Names
  • *.selfhost.de
  • selfhost.de
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • GlobalSign GCC R6 AlphaSSL CA 2023
validity period
Not valid before
2024-07-17
Not valid after
2025-08-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
55:A7:DF:0B:E8:D9:C3:22:AE:45:B4:BB:BB:C8:A9:38:5F:01:29:7F:B3:53:49:71:44:F5:9C:60:DB:B3:11:12
SHA1
41:4A:31:BA:91:70:0E:07:5B:49:93:87:21:82:78:68:9A:5C:5C:47
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
  • 19:01:18:32:1E:63:59:A3:DF:D6:71:F9:84:88:E1:CE:41:95:F5:2E
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 17 13:37:34.878 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:48:D1:D9:D7:8B:C8:AF:D3:63:FE:8A:8C:
  • 91:98:54:28:B4:35:63:4B:65:53:46:DE:2F:B8:70:14:
  • A7:BD:9E:E0:02:20:69:E3:53:7C:7D:B5:89:0B:5B:38:
  • 5B:8E:03:F0:E8:03:C4:52:1F:95:01:38:3B:CC:79:AF:
  • 63:45:F3:BA:6F:8E
  • 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 17 13:37:35.074 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:57:45:87:F6:BA:EE:FD:CB:71:BA:4A:CE:
  • DE:C4:DC:F2:BF:B4:68:12:5E:BA:FE:52:66:9A:68:87:
  • DB:81:19:C1:02:20:1D:80:C2:6F:38:96:E0:75:36:0F:
  • 4D:B0:52:31:A6:0E:72:5C:34:91:26:A2:D7:36:21:41:
  • 12:B1:CE:B7:5F:6D
  • 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 17 13:37:35.161 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:8E:94:FD:40:2B:32:F1:92:1B:15:6A:
  • 26:31:2C:96:B0:2C:40:B3:24:80:24:D1:E8:3D:4D:CC:
  • A7:75:A9:BD:A9:02:21:00:AC:46:33:91:AE:F0:0F:B0:
  • 9E:6A:37:54:92:5C:2E:3B:72:B2:8C:0B:90:7D:9F:A9:
  • CE:26:9C:AE:19:9E:B9:3E