SSL check results of kamenice.cz

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Discover if the mail servers for kamenice.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 Sun, 24 May 2020 22:10:07 +0000

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

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

/mailservers/kamenice.cz

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.obeckamenice.cz
178.17.12.146
Results incomplete
10
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
etna.w2hosting.cz
2001:1528:250::52d0:3121
30
supported
etna.w2hosting.cz
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s
etna.w2hosting.cz
82.208.49.33
30
supported
etna.w2hosting.cz
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s

Outgoing Mails

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

Certificates

First seen at:

CN=etna.w2hosting.cz

Certificate chain
Subject
Common Name (CN)
  • etna.w2hosting.cz
Alternative Names
  • etna.w2hosting.cz
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2018-01-18
Not valid after
2018-04-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D5:C4:6A:EE:20:62:38:CC:D9:B9:5D:E6:F5:5C:13:32:49:1B:3B:58:22:FA:8B:38:DA:AD:76:19:41:F6:74:FA
SHA1
3C:93:56:26:6C:C7:4E:D4:58:19:1E:64:FF:E9:03:B0:D9:48:26:E9
X509v3 extensions
subjectKeyIdentifier
  • F6:DF:90:5C:75:2B:7B:6F:9B:E8:C3:EA:C1:C4:3C:39:50:99:24:DA
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
  • User Notice:
  • Explicit Text: This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/