SSL-Tools

SSL check results of steinbeis.schule

NEW You can also bulk check multiple servers.

Discover if the mail servers for steinbeis.schule 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, 19 Apr 2024 06:17:20 +0000

The mailservers of steinbeis.schule can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @steinbeis.schule addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.steinbeis.schule
129.143.142.36
 10
supported
*.steinbeisschule-reutlingen.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.steinbeisschule-reutlingen.de

Certificate chain
  • *.steinbeisschule-reutlingen.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.steinbeisschule-reutlingen.de
Alternative Names
  • *.steinbeis.schule
  • *.steinbeisschule-reutlingen.de
  • steinbeis.schule
  • steinbeisschule-reutlingen.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-04-03
Not valid after
2024-07-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
92:63:60:9B:AE:2D:0F:44:B9:6E:FB:9A:8A:83:37:46:F4:6C:19:E1:4B:92:B1:8F:73:45:C3:A2:B1:38:CC:4C
SHA1
59:B1:26:03:71:65:10:E7:CF:DC:D5:7F:4A:DE:84:C8:EF:B1:76:C1
X509v3 extensions
subjectKeyIdentifier
  • E2:A1:60:E3:D7:2E:0B:08:C5:18:79:5B:3D:61:52:20:69:58:BF:28
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Apr 3 13:32:33.742 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:61:DA:A2:9D:EC:F1:A8:80:B0:1C:99:76:
  • 87:46:CB:78:B1:E0:70:57:2A:37:61:69:30:DE:9D:2E:
  • 3B:E5:B4:36:02:20:37:3B:9C:0B:6B:46:39:A0:E8:CC:
  • 6A:7A:B0:D3:67:FD:B3:3B:A9:22:51:81:5E:C9:CA:2F:
  • 95:25:EE:72:F7:25
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 19:98:10:71:09:F0:D6:52:2E:30:80:D2:9E:3F:64:BB:
  • 83:6E:28:CC:F9:0F:52:8E:EE:DF:CE:4A:3F:16:B4:CA
  • Timestamp : Apr 3 13:32:33.764 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:AB:56:39:54:5D:C9:96:B5:9A:7D:43:
  • 3F:74:AF:F8:ED:66:91:25:2B:B1:D8:FD:D3:13:61:B7:
  • 2A:E9:9F:94:A9:02:20:4F:2D:3C:19:D9:CF:D9:5A:E0:
  • 0C:F9:C0:9B:76:EE:9E:91:DA:5E:6F:A0:E7:AC:DF:8E:
  • A9:CB:46:84:4D:67:84