SSL check results of conel.cz

NEW You can also bulk check multiple servers.

Discover if the mail servers for conel.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 Fri, 23 Sep 2022 05:22:31 +0000

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

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

/mailservers/conel.cz

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.conel.cz
2a02:a40:220:ffff::2
Results incomplete
1 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail.conel.cz
85.207.4.114
1
supported
linux-rhel
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
2 s
mail1.conel.cz
82.144.136.70
Results incomplete
5 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 @conel.cz address so far. Test mail delivery

Certificates

First seen at:

emailAddress=root@linux-rhel,CN=linux-rhel,OU=SomeOrganizationalUnit,O=SomeOrganization,L=SomeCity,ST=SomeState,C=--

Certificate chain
  • linux-rhel (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority

Subject
Country (C)
  • --
State (ST)
  • SomeState
Locality (L)
  • SomeCity
Organization (O)
  • SomeOrganization
Organizational Unit (OU)
  • SomeOrganizationalUnit
Common Name (CN)
  • linux-rhel
Email
  • root@linux-rhel
Issuer

Certificate is self-signed.

validity period
Not valid before
2022-02-10
Not valid after
2023-02-10
Fingerprints
SHA256
C7:5B:08:AF:B5:13:33:33:55:A8:5F:A7:5E:F9:E3:7C:6A:4F:55:00:C6:FB:BF:0A:6D:BD:C6:41:7A:DC:65:E7
SHA1
A2:40:9C:C0:DE:96:33:2A:0F:A9:DA:88:D5:53:49:39:74:2C:BC:C5
X509v3 extensions
subjectKeyIdentifier
  • 5C:75:84:39:3B:10:B8:05:B4:0E:14:13:F8:E2:02:C5:27:D8:87:65
authorityKeyIdentifier
  • keyid:5C:75:84:39:3B:10:B8:05:B4:0E:14:13:F8:E2:02:C5:27:D8:87:65