SSL-Tools

SSL check results of feynkost.com

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Discover if the mail servers for feynkost.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 Mon, 24 Aug 2020 22:31:57 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
feynkost.com
85.214.59.100
 10
supported
feynkost.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=feynkost.com

Certificate chain
Subject
Common Name (CN)
  • feynkost.com
Alternative Names
  • *.feynkost.com
  • feynkost.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-06-03
Not valid after
2020-09-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D4:CE:89:1F:73:A2:57:5B:55:9C:24:A7:71:FC:43:8E:CA:01:6F:68:83:E4:8C:E0:AB:B0:C3:C8:3E:9B:FE:5B
SHA1
5F:44:39:0F:79:62:1A:0D:5A:0B:4E:53:BD:C4:AB:DB:71:82:9D:46
X509v3 extensions
subjectKeyIdentifier
  • EB:F3:73:46:9C:49:AB:74:7B:E1:95:73:C0:71:F5:E5:D1:92:FF:D2
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : Jun 3 09:24:45.818 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:CF:1C:42:7F:12:80:5D:CE:25:B9:5B:
  • 3B:3C:96:FB:82:0C:FB:86:56:6F:32:21:50:2B:ED:88:
  • E2:E2:09:41:4F:02:21:00:E3:14:FC:03:19:A1:DA:D8:
  • 92:1C:07:05:6A:1E:29:F1:C0:BA:AC:0A:AE:B9:DF:EE:
  • 2A:F3:0E:7F:9C:25:59:CA
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Jun 3 09:24:45.787 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:28:02:35:E7:7D:85:6D:B9:18:F0:54:70:
  • 0C:5B:A7:F6:3B:B1:F2:7C:12:4D:1B:3D:DA:6A:12:97:
  • 6B:69:19:96:02:20:20:B6:3E:65:92:4C:29:74:73:CE:
  • F5:99:0C:52:3D:34:BA:8A:7A:0B:6C:D3:9B:67:44:BD:
  • 3B:95:CC:E8:57:1E