SSL-Tools

SSL check results of hauptkerle.com

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Discover if the mail servers for hauptkerle.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, 26 Apr 2026 00:30:19 +0000

The mailservers of hauptkerle.com can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @hauptkerle.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.hauptkerle.com
89.58.3.91
 10
supported
bacher-online.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
7 s

Outgoing Mails

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

Certificates

First seen at:

CN=bacher-online.de

Certificate chain
  • bacher-online.de
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E8
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • bacher-online.de
Alternative Names
  • anja.bacher-online.de
  • baarkeeper.de
  • bacher-online.de
  • calc.bacher-online.de
  • calculator.bacher-online.de
  • cloud.bacher-online.de
  • elkarbackup.bacher-online.de
  • familie.bacher-online.de
  • hauptkerle.com
  • liederkranz-so.de
  • mail.baarkeeper.de
  • mail.bacher-online.de
  • mail.bacher-online.org
  • mail.hauptkerle.com
  • mail.liederkranz-so.de
  • nagios.bacher-online.de
  • newsletter.bacher-online.de
  • password.bacher-online.de
  • phpmyadmin.bacher-online.org
  • registry-ui.bacher-online.de
  • registry.bacher-online.de
  • webmail.bacher-online.de
  • webmail.bacher-online.org
  • wiki.bacher-online.de
  • www.baarkeeper.de
  • www.hauptkerle.com
  • www.liederkranz-so.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E8
validity period
Not valid before
2026-04-24
Not valid after
2026-07-23
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
66:57:37:85:46:29:F6:17:83:55:59:37:6B:DE:76:9A:2B:78:8C:16:50:81:31:83:CA:AE:A4:7D:C5:01:90:56
SHA1
DD:13:0B:B8:2C:77:71:AC:EA:6F:0F:5E:07:BB:F6:E6:51:4E:DE:6D
X509v3 extensions
subjectKeyIdentifier
  • F9:FE:27:82:B5:C7:C4:29:FE:0F:55:3E:D9:D9:EB:1C:E8:15:D6:C5
authorityKeyIdentifier
  • keyid:8F:0D:13:A2:F6:2E:7E:D1:50:6C:33:18:38:5D:59:8E:23:72:91:CA
authorityInfoAccess
  • CA Issuers - URI:http://e8.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e8.c.lencr.org/127.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 24 19:47:49.477 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:4D:B7:B5:9B:26:1F:4D:85:EB:7C:04:A2:
  • FF:7A:51:2D:93:19:17:57:EE:6C:EC:C3:3D:6A:83:41:
  • C8:51:2C:CA:02:20:3A:A0:81:93:42:CE:3D:A7:BC:E2:
  • 9C:16:3E:2C:E1:CF:64:22:54:8A:F3:94:6A:C2:2E:14:
  • BC:4A:57:EE:4E:19
  • 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 24 19:47:49.529 2026 GMT
  • Extensions: 00:00:05:00:04:C4:C1:6B
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:3A:A6:CD:0A:FC:51:A5:D0:9E:E1:A6:3D:
  • D4:16:F2:BF:4C:A1:38:60:C1:E0:30:AC:E8:43:DD:09:
  • 7D:10:6D:17:02:20:65:00:AB:E5:FF:18:CA:04:7A:7A:
  • 7B:79:94:E7:E8:38:6E:B2:DB:DC:DD:08:C6:C2:9D:18:
  • 11:97:BD:53:FE:47