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SSL check results of server.lhotanetreba.cz

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Discover if the mail servers for server.lhotanetreba.cz 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 Sat, 26 Sep 2026 00:30:22 +0000

The mailservers of server.lhotanetreba.cz can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @server.lhotanetreba.cz addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
server.lhotanetreba.cz
93.99.65.160
 -
supported
server.lhotanetreba.cz
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 @server.lhotanetreba.cz address so far. Test mail delivery

Certificates

First seen at:

CN=server.lhotanetreba.cz

Certificate chain
  • server.lhotanetreba.cz
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • YE2
        • remaining
        • 384 bit
        • ecdsa-with-SHA384
          • Root YE
            • remaining
            • 384 bit
            • ecdsa-with-SHA384
              • ISRG Root X2 (Certificate is self-signed.)
                • remaining
                • 384 bit
                • ecdsa-with-SHA384
Subject
Common Name (CN)
  • server.lhotanetreba.cz
Alternative Names
  • server.lhotanetreba.cz
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YE2
validity period
Not valid before
2026-09-22
Not valid after
2026-12-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
50:DE:0C:7B:5F:FF:D2:33:56:FD:74:FD:51:6C:B7:7C:80:0E:33:9B:C0:1B:D0:B7:D0:46:60:71:CC:49:C0:B5
SHA1
90:AC:CB:70:21:07:02:25:16:BB:82:BB:23:2C:F6:74:86:66:DA:93
X509v3 extensions
subjectKeyIdentifier
  • A2:7C:08:4F:79:3C:D7:77:0F:C7:75:D2:42:F0:5B:CA:5E:A4:A6:C1
authorityKeyIdentifier
  • keyid:B9:59:F2:8E:CF:22:F0:86:D3:37:48:FF:76:14:18:BA:82:D8:55:87
authorityInfoAccess
  • CA Issuers - URI:http://ye2.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://ye2.c.lencr.org/111.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB:
  • B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14
  • Timestamp : Sep 22 16:34:19.179 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:A9:0F:A3:55:1A:97:B6:0A:5C:6A:FC:
  • 60:CF:57:0F:E7:15:DF:A9:4B:14:1A:8C:4A:6F:FE:84:
  • 1D:AE:45:7D:7A:02:20:08:07:1B:C8:34:E8:74:95:12:
  • 03:B0:CE:AC:46:CE:8E:DC:1D:D0:5E:D7:F4:B2:75:7E:
  • 55:5A:C8:49:69:F9:0A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86:
  • D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF
  • Timestamp : Sep 22 16:34:19.373 2026 GMT
  • Extensions: 00:00:05:00:43:FD:4F:F6
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:1E:5D:05:93:2A:D8:FB:F4:F6:2E:3D:6A:
  • F9:4E:1F:92:20:12:C1:AC:C2:8B:AC:95:E9:54:16:AD:
  • 05:75:E1:02:02:21:00:85:56:B3:77:6E:90:D7:DE:DF:
  • 60:F3:17:01:88:DB:E1:76:4E:B1:CB:AD:EB:DD:1B:A4:
  • 84:E6:6A:58:07:09:09