SSL-Tools

SSL check results of lightyear-corp.fr

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Discover if the mail servers for lightyear-corp.fr 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 Tue, 17 Jun 2025 13:48:12 +0000

The mailservers of lightyear-corp.fr can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @lightyear-corp.fr addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.lightyear-corp.fr
82.66.124.7
 10
supported
mail.lightyear-corp.fr
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

We have not received any emails from a @lightyear-corp.fr address so far. Test mail delivery

Certificates

First seen at:

CN=mail.lightyear-corp.fr

Certificate chain
  • mail.lightyear-corp.fr
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.lightyear-corp.fr
Alternative Names
  • mail.lightyear-corp.fr
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-06-16
Not valid after
2025-09-14
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
4D:2B:52:6D:C3:3B:14:96:0F:CD:BE:22:4A:74:AD:F9:66:84:AA:E0:D4:E9:BB:16:80:88:55:C3:46:59:9D:7E
SHA1
1C:B6:F7:3A:C1:BB:FC:14:40:6F:22:91:AE:44:3F:70:19:8E:0B:CE
X509v3 extensions
subjectKeyIdentifier
  • 5A:CC:98:C4:59:39:DF:62:DB:48:F8:C8:24:13:A6:24:0B:E1:00:30
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r10.c.lencr.org/91.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A4:42:C5:06:49:60:61:54:8F:0F:D4:EA:9C:FB:7A:2D:
  • 26:45:4D:87:A9:7F:2F:DF:45:59:F6:27:4F:3A:84:54
  • Timestamp : Jun 16 22:05:19.056 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:4A:59:28:FD:77:97:CE:62:48:4F:33:71:
  • 5E:BD:B9:3A:94:EC:ED:76:89:9A:7B:7E:D1:FB:20:EC:
  • 9E:7C:0C:51:02:20:09:01:12:20:18:53:EF:8D:9C:FF:
  • AD:02:5B:59:8E:A0:39:C5:E7:79:D6:64:43:61:DD:5D:
  • BD:D0:0E:6C:62:5F
  • 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 16 22:05:21.118 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:73:6E:33:99:D2:ED:5D:41:F8:F7:C4:17:
  • AA:4E:CD:C6:63:EE:FC:15:73:A1:15:78:10:0E:5A:DA:
  • FC:9F:DA:41:02:21:00:F5:DE:B1:5F:BF:C8:94:D3:E6:
  • 42:FB:C0:8F:08:C6:57:05:77:11:6C:4F:71:74:EA:9E:
  • D0:9C:05:31:78:2C:4C

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.mail.lightyear-corp.fr
  • DANE-TA: Trust Anchor Assertion
  • Use subject public key
  • SHA-512 Hash
valid
valid
_25._tcp.mail.lightyear-corp.fr
  • DANE-TA: Trust Anchor Assertion
  • Use full certificate
  • SHA-512 Hash
valid
valid
_25._tcp.mail.lightyear-corp.fr
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-512 Hash
valid
valid
_25._tcp.mail.lightyear-corp.fr
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-512 Hash
valid
valid
_25._tcp.mail.lightyear-corp.fr
  • DANE-TA: Trust Anchor Assertion
  • Use full certificate
  • SHA-256 Hash
valid
valid
_25._tcp.mail.lightyear-corp.fr
  • DANE-TA: Trust Anchor Assertion
  • Use subject public key
  • SHA-256 Hash
valid
valid
_25._tcp.mail.lightyear-corp.fr
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
valid
valid
_25._tcp.mail.lightyear-corp.fr
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid