SSL-Tools

SSL check results of kottbus.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for kottbus.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 Fri, 28 Aug 2020 23:27:23 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
host2.belogy.de
2a01:4f8:140:4442::2:1
 10
supported
host2.belogy.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s
host2.belogy.de
46.4.143.128
 10
supported
host2.belogy.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s

Outgoing Mails

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

Certificates

First seen at:

CN=host2.belogy.de

Certificate chain
Subject
Common Name (CN)
  • host2.belogy.de
Alternative Names
  • host2.belogy.de
  • imap.belogy.de
  • mail.belogy.de
  • smtp.belogy.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
B0:1F:48:2D:AB:38:A2:21:BD:B6:91:D6:E5:09:59:1D:48:CE:11:07:6D:A6:11:CE:80:51:C2:39:FA:CA:68:AE
SHA1
C8:39:E0:9C:10:1F:7C:73:61:E2:11:C6:A0:35:EA:59:BD:70:6E:55
X509v3 extensions
subjectKeyIdentifier
  • 63:68:95:C5:64:3A:AE:F1:82:6A:79:8A:F0:FC:13:18:1C:52:DA:C8
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 2 01:08:29.480 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:14:3F:61:63:04:39:87:07:80:36:D3:91:
  • CB:8E:FA:A2:91:03:71:A0:AB:2C:51:AB:B4:FF:E5:19:
  • A0:78:98:A6:02:20:09:56:A6:84:31:DD:14:77:C7:A7:
  • FF:36:99:7C:A2:4C:D8:75:A2:67:05:52:D4:EC:58:19:
  • D2:2A:47:D3:75:23
  • 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 01:08:29.480 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:EE:C0:C0:B3:B4:69:6A:BE:44:A0:2E:
  • 40:EE:8F:7A:09:11:DB:C4:86:71:2E:6E:5A:CF:15:A7:
  • 1A:38:69:E5:E7:02:20:24:E2:DE:59:79:59:F2:5F:81:
  • C1:58:08:A2:71:2A:5E:CB:70:EF:83:BB:BE:41:ED:54:
  • 13:78:70:30:80:53:CC