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SSL check results of fresen-it.de

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Discover if the mail servers for fresen-it.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 Wed, 29 Jul 2020 01:02:57 +0000

The mailservers of fresen-it.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @fresen-it.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
1.fresenit.data.host.fresen-it.de
2a05:bec0:1:19::30
 10
supported
1.fresenit.data.host.fresen-it.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
1.fresenit.data.host.fresen-it.de
109.230.255.230
 10
supported
1.fresenit.data.host.fresen-it.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s

Outgoing Mails

We have not received any emails from a @fresen-it.de address so far. Test mail delivery

Certificates

First seen at:

CN=1.fresenit.data.host.fresen-it.de

Certificate chain
Subject
Common Name (CN)
  • 1.fresenit.data.host.fresen-it.de
Alternative Names
  • 1.fresenit.data.host.fresen-it.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-07-02
Not valid after
2020-09-30
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C9:85:90:C7:E7:98:25:6E:59:72:DF:14:18:5A:6C:95:41:6E:42:C9:FA:E2:AE:F2:42:05:A4:5E:1C:4E:F9:32
SHA1
7B:1E:78:9F:F2:BD:59:B8:72:4B:CE:2F:03:1D:78:99:C4:17:9F:E5
X509v3 extensions
subjectKeyIdentifier
  • 44:1E:03:0F:71:F9:6F:03:7D:D5:82:D9:F8:8C:9F:87:54:31:63:11
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 : E7:12:F2:B0:37:7E:1A:62:FB:8E:C9:0C:61:84:F1:EA:
  • 7B:37:CB:56:1D:11:26:5B:F3:E0:F3:4B:F2:41:54:6E
  • Timestamp : Jul 2 19:32:09.800 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F0:9D:66:47:D7:B7:15:22:AB:71:75:
  • 29:4A:3C:5D:D4:52:5C:D0:ED:2E:25:0B:62:E2:FA:0B:
  • 0F:37:27:68:42:02:21:00:AF:61:40:0B:1B:AF:75:06:
  • FE:C2:94:87:22:E1:44:3B:AB:35:BB:39:6B:F9:A8:C8:
  • 5C:EF:B2:97:B4:FD:A2:62
  • 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 : Jul 2 19:32:09.850 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E1:A2:E4:D2:AD:0A:2E:17:EB:F5:33:
  • CF:67:8B:03:CB:F0:BB:C2:C7:AD:07:C3:CF:6C:EF:E3:
  • 43:8D:D2:7D:94:02:21:00:E8:50:93:00:8A:70:03:21:
  • 41:FF:15:F6:AF:25:5A:B6:D9:AF:AE:35:A3:87:F2:1C:
  • 73:9B:C8:4C:B9:C4:F3:C3