SSL-Tools

SSL check results of mail.ouroboros.gehrung-online.de

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Discover if the mail servers for mail.ouroboros.gehrung-online.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

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Report created Sun, 20 Jul 2025 00:30:19 +0000

The mailservers of mail.ouroboros.gehrung-online.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.ouroboros.gehrung-online.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.ouroboros.gehrung-online.de
2a03:4000:8:749::1
 0
supported
mail.ouroboros.gehrung-online.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
9 s
mail.ouroboros.gehrung-online.de
37.221.193.42
 0
supported
mail.ouroboros.gehrung-online.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
4 s

Outgoing Mails

We have not received any emails from a @mail.ouroboros.gehrung-online.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.ouroboros.gehrung-online.de

Certificate chain
  • mail.ouroboros.gehrung-online.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.ouroboros.gehrung-online.de
Alternative Names
  • mail.ouroboros.gehrung-online.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-06-18
Not valid after
2025-09-16
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
4F:08:EB:DF:9A:6C:DB:6F:A4:1A:88:00:22:B8:E3:80:BE:21:78:EC:29:A4:76:BB:78:95:CA:BA:FF:F8:A5:89
SHA1
BF:F6:74:88:23:0F:A2:92:49:B5:81:C2:4D:3A:82:2C:36:44:F8:FF
X509v3 extensions
subjectKeyIdentifier
  • 43:B9:77:B0:A7:6C:9D:B8:23:BB:15:D4:48:DA:93:4A:20:32:66:32
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r11.c.lencr.org/58.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0D:E1:F2:30:2B:D3:0D:C1:40:62:12:09:EA:55:2E:FC:
  • 47:74:7C:B1:D7:E9:30:EF:0E:42:1E:B4:7E:4E:AA:34
  • Timestamp : Jun 18 06:49:45.000 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:DC:77:0A:50:70:41:A1:1B:67:E8:FF:
  • 65:D2:D0:06:6A:04:C4:C4:EE:AD:E8:40:5B:A4:31:1D:
  • 9E:B2:4F:08:0C:02:21:00:89:C5:20:1D:CD:18:6D:6F:
  • E5:50:76:63:8E:F1:B9:24:93:F2:AD:BB:1B:64:41:18:
  • 2E:8E:C0:F4:EA:04:37:5E
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DD:DC:CA:34:95:D7:E1:16:05:E7:95:32:FA:C7:9F:F8:
  • 3D:1C:50:DF:DB:00:3A:14:12:76:0A:2C:AC:BB:C8:2A
  • Timestamp : Jun 18 06:49:45.088 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:BB:B6:E8:08:DC:75:F7:C4:1B:BA:E6:
  • D0:54:44:9A:6B:69:51:79:03:48:47:03:FB:C2:99:21:
  • 5A:95:96:B7:1C:02:21:00:EA:9B:72:47:B0:B3:52:4C:
  • EC:CF:BC:2F:D9:C0:17:9D:CF:C8:C8:15:6E:70:F3:EC:
  • 1A:43:26:BD:14:5E:16:D6