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SSL check results of kds17.web4a.de

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Discover if the mail servers for kds17.web4a.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 Thu, 04 Jun 2020 00:31:24 +0000

The mailservers of kds17.web4a.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @kds17.web4a.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
kds17.web4a.de
62.27.5.85
 10
supported
kds17.web4a.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
11 s

Outgoing Mails

We have not received any emails from a @kds17.web4a.de address so far. Test mail delivery

Certificates

First seen at:

CN=kds17.web4a.de

Certificate chain
Subject
Common Name (CN)
  • kds17.web4a.de
Alternative Names
  • kds17.web4a.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-02
Not valid after
2020-07-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C4:B2:05:FC:24:F8:92:5D:D9:4D:38:06:86:FF:17:84:70:D1:F8:A3:76:21:8D:54:64:BB:7C:0B:77:AD:F6:C8
SHA1
B8:EF:A0:54:51:EA:18:2C:DE:2D:D1:01:C2:42:FB:83:F8:A5:58:4A
X509v3 extensions
subjectKeyIdentifier
  • E3:75:BF:5B:F5:1F:30:30:B9:1A:48:A7:E9:35:60:5C:59:69:10:7A
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 : F0:95:A4:59:F2:00:D1:82:40:10:2D:2F:93:88:8E:AD:
  • 4B:FE:1D:47:E3:99:E1:D0:34:A6:B0:A8:AA:8E:B2:73
  • Timestamp : May 2 12:11:10.252 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:50:AE:1E:E1:1B:EF:8D:D9:03:41:BD:15:
  • 2C:CA:DB:98:D8:08:55:E9:45:D6:B5:19:05:77:FD:A7:
  • 2B:9A:C7:73:02:21:00:C5:B8:05:A4:0B:CC:AA:5C:09:
  • 02:F1:EA:24:14:F2:CC:E9:C8:98:D2:E9:E6:0B:F3:20:
  • 95:61:9F:AB:0F:CA:A7
  • 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 : May 2 12:11:10.315 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:C1:AC:43:37:6E:5A:15:B2:48:94:EC:
  • 0D:7A:6C:C8:AF:A2:B1:49:64:7F:F7:C8:3B:51:86:AD:
  • 02:D3:62:3B:E9:02:20:49:9C:03:98:92:AE:FC:90:F1:
  • 5C:FB:D3:FB:B7:C0:52:E0:1F:A1:DA:2B:DE:12:80:B8:
  • FE:D1:E2:A3:EF:15:1E