SSL-Tools

SSL check results of lenn.media

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Discover if the mail servers for lenn.media 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 Mon, 04 Aug 2025 00:30:31 +0000

The mailservers of lenn.media can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @lenn.media addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.lenn.media
2a10:9903:511:30::48
 10
supported
lenn.media
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
4 s
mail.lenn.media
171.22.77.48
 10
supported
lenn.media
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 @lenn.media address so far. Test mail delivery

Certificates

First seen at:

CN=lenn.media

Certificate chain
  • lenn.media
    • remaining
    • 384 bit
    • ecdsa-with-SHA384
      • E6
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • lenn.media
Alternative Names
  • *.lenn.media
  • lenn.media
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E6
validity period
Not valid before
2025-07-23
Not valid after
2025-10-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
89:0E:AA:98:E3:C3:89:17:2C:59:D2:EB:00:08:82:8B:F1:BC:A6:FB:AA:13:E3:80:04:D4:A8:5A:98:5D:17:E1
SHA1
95:90:4B:5B:C3:6F:37:F6:F5:0C:FF:7C:F2:08:EB:A6:B7:35:B4:5C
X509v3 extensions
subjectKeyIdentifier
  • 7E:FE:D3:A7:C9:E6:EF:29:56:71:E5:B9:BF:29:56:28:66:04:BE:B0
authorityKeyIdentifier
  • keyid:93:27:46:98:03:A9:51:68:8E:98:D6:C4:42:48:DB:23:BF:58:94:D2
authorityInfoAccess
  • CA Issuers - URI:http://e6.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e6.c.lencr.org/123.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 : Jul 23 10:41:33.482 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:BB:C2:80:1F:74:BB:F0:9E:12:CF:8D:
  • 03:67:89:4E:82:47:14:E6:7C:98:BA:3F:69:43:1B:81:
  • 7F:B4:34:B4:9B:02:20:58:A2:BB:20:67:C5:57:4E:FE:
  • 54:54:28:6C:E1:72:A0:41:27:3D:3B:29:61:2C:78:F7:
  • E6:CA:6E:EE:2D:E4:B6
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Jul 23 10:41:33.496 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:16:2E:C8:37:4B:CF:C3:11:86:90:64:75:
  • 0D:95:85:09:C1:BD:0E:56:3D:87:49:80:AF:AB:64:2C:
  • F3:89:A5:5F:02:21:00:A1:46:4E:70:2D:C9:CB:61:D5:
  • 20:2E:DC:81:C0:56:5F:D9:AC:EA:2A:6C:4F:3D:F1:34:
  • 21:FB:26:AE:11:E6:A8

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.lenn.media
  • DANE-TA: Trust Anchor Assertion
  • Use full certificate
  • SHA-256 Hash
valid
valid