SSL-Tools

SSL check results of complex-system.eu

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Discover if the mail servers for complex-system.eu 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, 29 Nov 2024 01:31:11 +0000

We can not guarantee a secure connection to the mailservers of complex-system.eu!

Please contact the operator of complex-system.eu and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/complex-system.eu

Servers

Incoming Mails

These servers are responsible for incoming mails to @complex-system.eu addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
poczta.complex-system.eu
79.162.248.95
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
poczta2.complex-system.eu
87.205.6.54
Results incomplete
15 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
relay.complex-system.eu
152.228.171.119
 20
supported
complex-system.eu
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 @complex-system.eu address so far. Test mail delivery

Certificates

First seen at:

CN=complex-system.eu

Certificate chain
  • complex-system.eu
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Expired
    • Unknown Authority
      nazwaSSL
Subject
Common Name (CN)
  • complex-system.eu
Alternative Names
  • complex-system.eu
  • www.complex-system.eu
Issuer
Country (C)
  • PL
Organization (O)
  • nazwa.pl sp. z o.o.
Organizational Unit (OU)
  • http://nazwa.pl
Common Name (CN)
  • nazwaSSL
validity period
Not valid before
2023-11-16
Not valid after
2024-11-15
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
79:D6:22:A9:86:87:AA:2B:0F:E0:1B:5A:CB:A8:74:D0:98:D2:E2:A5:72:BE:E2:42:99:B4:4D:BF:DA:B8:BE:5E
SHA1
65:EA:A1:D7:E4:91:2F:E1:47:F7:FE:81:30:3B:0F:F8:23:FA:F7:33
X509v3 extensions
crlDistributionPoints
  • Full Name:
  • URI:http://crl.certum.pl/nazwassl2sha2.crl
authorityInfoAccess
  • OCSP - URI:http://nazwassl2sha2.ocsp-certum.com
  • CA Issuers - URI:http://repository.certum.pl/nazwassl2sha2.cer
authorityKeyIdentifier
  • keyid:54:DC:90:BB:9D:47:19:51:C3:79:68:2C:84:ED:2E:DF:5F:46:BA:C7
subjectKeyIdentifier
  • 8F:1B:72:2B:00:2E:4C:25:62:32:78:86:48:94:EE:9C:43:4B:39:AF
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.2.616.1.113527.2.5.1.9.2.3
  • CPS: https://www.certum.pl/CPS
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 3F:17:4B:4F:D7:22:47:58:94:1D:65:1C:84:BE:0D:12:
  • ED:90:37:7F:1F:85:6A:EB:C1:BF:28:85:EC:F8:64:6E
  • Timestamp : Nov 16 00:15:24.584 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D8:EF:28:D5:69:F1:1C:4C:CB:40:7E:
  • FB:54:16:D3:DD:81:D2:F5:08:C7:E7:F0:D6:5F:AC:37:
  • A1:0F:70:60:0D:02:20:72:45:05:DB:33:6F:02:A5:16:
  • 3A:96:1E:AE:C1:E2:7D:87:C7:DD:18:D6:57:E3:3B:82:
  • C9:9A:F5:47:3B:F2:E1
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Nov 16 00:15:24.595 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:31:4B:62:FD:5E:0B:BC:2D:9F:3F:9C:95:
  • C0:77:3C:6E:A5:E0:7E:E5:EA:32:03:6C:4B:F7:FC:A0:
  • 12:9C:73:CA:02:21:00:BF:E6:2E:45:77:45:56:14:2D:
  • 84:25:40:5D:A4:CA:AC:BB:1C:5B:CF:38:D3:D1:62:D9:
  • DB:B0:61:E3:3D:40:5F
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Nov 16 00:15:24.732 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:25:E7:A7:EE:44:32:EE:B4:88:DD:0E:2D:
  • DC:46:42:3C:ED:17:5C:CA:CC:7C:19:97:45:75:67:BC:
  • EF:6D:0E:B9:02:21:00:85:E1:A8:60:74:88:86:73:6C:
  • B6:A6:67:07:1A:BC:DF:61:F4:13:8B:7A:6B:15:2D:05:
  • 78:4E:8C:CF:53:94:B2