SSL check results of mail.gybon.cz

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Discover if the mail servers for mail.gybon.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

Report created Tue, 15 Sep 2020 11:16:40 +0000

We can not guarantee a secure connection to the mailservers of mail.gybon.cz!

Please contact the operator of mail.gybon.cz and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/mail.gybon.cz

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.gybon.cz addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.gybon.cz
195.113.185.174
-
supported
*.gybon.cz
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
13 s
mail.gybon.cz
2001:718:1204:101::ee
Results incomplete
- not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

We have not received any emails from a @mail.gybon.cz address so far. Test mail delivery

Certificates

First seen at:

CN=*.gybon.cz

Certificate chain
  • *.gybon.cz
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Unknown Authority

      RapidSSL TLS RSA CA G1
Subject
Common Name (CN)
  • *.gybon.cz
Alternative Names
  • *.gybon.cz
  • gybon.cz
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • RapidSSL TLS RSA CA G1
validity period
Not valid before
2018-10-19
Not valid after
2020-10-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
47:D4:46:E7:85:73:97:E0:04:43:FB:2D:47:37:AF:CB:EB:D5:A1:F0:E1:B2:13:EF:95:B4:23:9E:FE:73:42:B7
SHA1
0A:31:74:EA:1D:C4:32:EA:17:98:C8:1B:4B:EF:F7:26:F3:0C:F6:7A
X509v3 extensions
authorityKeyIdentifier
  • keyid:0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
  • 76:13:57:C5:FC:C5:58:2B:8A:22:C7:92:B5:8E:7F:CF:46:9D:7B:31
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
certificatePolicies
  • Policy: 2.16.840.1.114412.1.2
  • CPS: https://www.digicert.com/CPS
  • Policy: 2.23.140.1.2.1
authorityInfoAccess
  • OCSP - URI:http://status.rapidssl.com
  • CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A4:B9:09:90:B4:18:58:14:87:BB:13:A2:CC:67:70:0A:
  • 3C:35:98:04:F9:1B:DF:B8:E3:77:CD:0E:C8:0D:DC:10
  • Timestamp : Oct 19 11:39:07.647 2018 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:9D:F0:DE:08:31:DA:B1:8B:0A:6D:7C:
  • 28:8D:01:1D:C6:D9:64:41:2D:7C:79:0D:1B:7C:94:AB:
  • 91:8A:6D:93:49:02:20:45:47:8D:85:69:91:CA:80:56:
  • CE:FC:D7:66:52:B7:83:67:43:4F:36:45:B4:89:78:C4:
  • BE:FF:94:74:B6:67:CA
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 87:75:BF:E7:59:7C:F8:8C:43:99:5F:BD:F3:6E:FF:56:
  • 8D:47:56:36:FF:4A:B5:60:C1:B4:EA:FF:5E:A0:83:0F
  • Timestamp : Oct 19 11:39:07.892 2018 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:FE:83:9B:1D:36:72:0B:61:2A:87:85:
  • 2C:2D:34:D3:A3:2F:0A:E9:FD:1A:0F:5C:6D:22:20:6F:
  • 41:D1:2E:E8:07:02:21:00:EB:51:02:01:1C:51:19:C5:
  • EF:67:8C:4E:82:0C:B3:E7:6C:69:E4:3E:78:54:94:11:
  • 04:8F:9D:94:E2:78:71:09
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : BB:D9:DF:BC:1F:8A:71:B5:93:94:23:97:AA:92:7B:47:
  • 38:57:95:0A:AB:52:E8:1A:90:96:64:36:8E:1E:D1:85
  • Timestamp : Oct 19 11:39:07.892 2018 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:AC:D9:84:C6:5E:85:16:24:E7:A1:10:
  • 00:F8:B8:A9:9F:E9:E1:21:07:90:C3:F7:9E:C3:28:2F:
  • 5C:C3:8E:CE:47:02:21:00:D0:F5:57:8F:2B:CD:89:DD:
  • 83:2C:4B:DD:A2:81:31:44:02:03:82:A6:6E:A5:EF:96:
  • 8E:49:99:E5:32:77:8F:1C