SSL-Tools

SSL check results of opsec.fail

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Discover if the mail servers for opsec.fail 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, 11 Dec 2024 01:32:15 +0000

The mailservers of opsec.fail can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @opsec.fail addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.opsec.fail
161.22.40.120
 10
supported
opsec.fail
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
3 s

Outgoing Mails

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

Certificates

First seen at:

CN=opsec.fail

Certificate chain
  • opsec.fail
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • opsec.fail
Alternative Names
  • mail.opsec.fail
  • opsec.fail
  • www.opsec.fail
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2024-12-02
Not valid after
2025-03-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
2F:91:BC:AA:CC:48:89:A8:A5:D4:DE:27:23:24:54:0F:61:8A:A2:DE:75:7B:5F:16:94:F4:F1:C0:CE:5F:AD:50
SHA1
E6:61:3B:E9:7D:89:DF:64:D1:67:BE:2D:A1:B1:A8:3D:9F:1F:5B:BA
X509v3 extensions
subjectKeyIdentifier
  • 1F:61:65:60:E4:EE:5D:95:88:90:34:52:EE:ED:03:2D:E7:84:7E:4B
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CF:11:56:EE:D5:2E:7C:AF:F3:87:5B:D9:69:2E:9B:E9:
  • 1A:71:67:4A:B0:17:EC:AC:01:D2:5B:77:CE:CC:3B:08
  • Timestamp : Dec 2 09:33:44.010 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:ED:88:04:46:0F:A0:DF:4A:B5:77:FF:
  • 53:39:BF:34:4E:A9:A6:42:3E:03:E6:87:10:5B:AB:FC:
  • A5:92:18:7D:BC:02:20:21:B4:E6:DA:64:4A:7E:06:72:
  • 26:26:94:6D:9D:11:54:0D:A8:25:44:00:0F:1F:AE:90:
  • 8E:04:8A:E3:47:9A:D9
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Dec 2 09:33:45.960 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:29:62:DA:E2:80:56:CF:A3:0D:F5:89:BD:
  • 60:F0:A5:FB:60:70:6C:0B:94:3D:FE:71:17:29:79:A1:
  • 9B:AC:2B:92:02:21:00:86:E3:F0:51:D8:8D:C0:8B:FF:
  • 5B:9C:A5:8A:52:64:ED:85:34:C6:C6:52:9E:10:04:3E:
  • C6:E4:96:80:1B:65:60