SSL-Tools

SSL check results of server1.clients.hu

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Discover if the mail servers for server1.clients.hu 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 Fri, 01 Aug 2025 00:31:28 +0000

The mailservers of server1.clients.hu can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @server1.clients.hu addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
server1.clients.hu
87.229.85.245
 1
supported
server1.clients.hu
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 @server1.clients.hu address so far. Test mail delivery

Certificates

First seen at:

CN=server1.clients.hu

Certificate chain
  • server1.clients.hu
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • server1.clients.hu
Alternative Names
  • server1.clients.hu
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-06-15
Not valid after
2025-09-13
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
7A:18:C1:5F:2D:69:3A:4D:70:55:61:10:F1:31:01:B4:60:34:DB:67:20:D9:DE:6C:C1:05:94:F4:30:BA:4C:20
SHA1
06:8D:B7:67:C3:47:CD:73:50:CA:06:76:3C:5D:BE:C0:85:26:5A:D3
X509v3 extensions
subjectKeyIdentifier
  • 64:D1:90:1E:86:31:7F:F4:F0:37:74:BA:BC:C3:79:D6:BF:D8:8F:C4
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/73.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 15 22:30:13.823 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:0D:C0:AA:D4:FC:C6:C4:70:C0:06:7B:E7:
  • 65:BC:9E:E7:B4:D8:D7:6F:D1:D6:CF:0F:06:63:C4:7C:
  • 26:C7:0E:9A:02:20:1B:25:CA:2A:11:DE:91:D4:D5:80:
  • 63:03:69:44:53:AB:AE:31:18:9D:53:E4:B9:AA:25:77:
  • 8A:E4:CF:63:F6:20
  • 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 15 22:30:13.827 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:F3:F4:A3:40:96:70:3F:11:07:B6:3C:
  • 28:EC:AB:7C:F5:8E:C8:E1:4E:54:FF:17:5A:BB:39:90:
  • C8:11:8B:E6:9D:02:20:74:B7:86:CB:59:9D:FE:19:51:
  • A2:FB:D3:DB:39:07:1C:6E:AF:68:37:C8:D3:96:0A:F4:
  • 53:03:00:F6:9C:F0:D1