SSL-Tools

SSL check results of mail.eickhoff.biz

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Discover if the mail servers for mail.eickhoff.biz 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

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Report created Sun, 10 May 2026 10:10:54 +0000

The mailservers of mail.eickhoff.biz can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.eickhoff.biz addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.eickhoff.biz
178.105.96.243
 -
supported
mail.eickhoff.biz
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.eickhoff.biz

Certificate chain
  • mail.eickhoff.biz
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R12
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.eickhoff.biz
Alternative Names
  • mail.eickhoff.biz
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R12
validity period
Not valid before
2026-05-09
Not valid after
2026-08-07
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
91:4E:20:3B:D0:43:59:D5:01:6E:E1:0F:D2:12:9E:56:A1:7E:A2:78:20:65:90:D8:CE:1E:75:D2:FB:47:91:9B
SHA1
22:80:D1:0B:2C:16:E5:77:A5:F7:F2:8D:83:A0:0D:16:FB:A9:0E:F7
X509v3 extensions
subjectKeyIdentifier
  • BE:E9:A4:DE:07:3F:1E:2A:A8:52:EB:AE:57:1D:D3:34:B4:76:04:8B
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/120.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : May 9 18:15:20.237 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:23:E2:C0:FD:BC:3F:F9:3D:70:C7:7F:01:
  • B0:EE:8C:91:43:9D:E3:CB:16:12:93:F4:8D:D2:F4:1E:
  • 0B:66:06:24:02:20:31:F7:A3:55:0C:89:33:7A:4B:EA:
  • 7E:4B:9C:B7:F6:56:6B:2C:41:60:59:37:51:69:00:FC:
  • 15:56:6C:98:1E:86
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9:
  • 1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A
  • Timestamp : May 9 18:15:21.150 2026 GMT
  • Extensions: 00:00:05:00:0A:BD:36:83
  • Signature : ecdsa-with-SHA256
  • 30:43:02:1F:2A:45:EA:B7:6D:F2:63:79:3D:83:B0:4C:
  • DB:79:64:8E:FB:8F:35:2C:81:22:8C:A3:F9:AA:46:3D:
  • 96:A3:A8:02:20:5D:4F:B0:F0:62:7F:59:B5:7C:52:DC:
  • EC:03:8F:EC:FF:19:35:C0:A8:99:C2:AA:7A:4B:3D:39:
  • 22:1F:4F:E2:BF