SSL check results of katers.de

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Discover if the mail servers for katers.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

Report created Wed, 21 Aug 2019 07:54:54 +0000

The mailservers of katers.de can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
host5.belogy.de.katers.de
46.4.143.132
10
supported
*.bn-host.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.bn-host.de

Certificate chain
  • *.bn-host.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch

Subject
Common Name (CN)
  • *.bn-host.de
Alternative Names
  • *.bn-host.de
  • bn-host.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2019-07-20
Not valid after
2019-10-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
8A:3E:1F:0D:BE:FF:CF:94:E9:DB:F7:01:72:E9:9B:6A:30:44:7C:03:C1:69:3E:9C:68:8E:9B:74:4D:BB:4F:0E
SHA1
8A:F2:B4:5B:A0:16:02:B8:6E:97:A3:69:10:3C:BF:04:FD:74:E2:F2
X509v3 extensions
subjectKeyIdentifier
  • 8C:4D:3A:FA:0B:8D:ED:4F:44:16:BE:E7:24:FE:9E:D6:66:8B:51:7E
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 : Jul 20 01:04:30.910 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:04:B5:94:6D:70:76:AA:14:39:AC:3A:2C:
  • 34:A1:87:22:F2:7B:48:79:88:7D:1F:84:D9:5C:F6:F4:
  • 5A:D7:DE:CE:02:20:0E:BB:47:8F:B9:89:C3:C3:C2:C9:
  • 4A:AE:37:7B:C0:C1:CA:6D:70:FD:E7:64:AC:45:34:17:
  • 10:43:5A:01:F1:1C
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 63:F2:DB:CD:E8:3B:CC:2C:CF:0B:72:84:27:57:6B:33:
  • A4:8D:61:77:8F:BD:75:A6:38:B1:C7:68:54:4B:D8:8D
  • Timestamp : Jul 20 01:04:30.858 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:44:AC:25:20:D1:A0:E7:4B:79:5B:70:B3:
  • 89:19:A5:11:A6:BF:FE:73:AA:16:23:88:B9:00:6C:8F:
  • 43:9A:56:0A:02:21:00:A9:89:30:61:2C:C0:37:96:8C:
  • 3E:EF:90:86:10:C9:82:6C:C7:D7:BA:48:3A:85:F4:93:
  • 50:97:91:AA:C2:80:23