SSL check results of jaba.cz

NEW You can also bulk check multiple servers.

Discover if the mail servers for jaba.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 Wed, 13 Oct 2021 20:54:55 +0000

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

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

/mailservers/jaba.cz

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.jaba.cz
2a01:5f0:1021:2399::6
Results incomplete
10
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
mail.jaba.cz
87.236.194.103
10
supported
mail.jaba.cz
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
15 s
mail2.jaba.cz
2a01:5f0:1021:2399::9
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail2.jaba.cz
89.187.140.195
Results incomplete
20 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 @jaba.cz address so far. Test mail delivery

Certificates

First seen at:

CN=mail.jaba.cz,O=Baraconsult,C=cz

Certificate chain
  • mail.jaba.cz (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority

Subject
Country (C)
  • cz
Organization (O)
  • Baraconsult
Common Name (CN)
  • mail.jaba.cz
Issuer

Certificate is self-signed.

validity period
Not valid before
2019-04-14
Not valid after
2029-04-11
Fingerprints
SHA256
99:27:37:6D:C9:57:D6:7F:B2:BA:5A:00:F7:5E:A1:D4:9F:88:A9:48:93:B3:84:78:29:A7:38:44:A6:ED:1C:6D
SHA1
61:66:3A:9A:BC:78:F8:84:27:31:BB:85:81:71:BC:6B:27:05:6F:81
X509v3 extensions
subjectKeyIdentifier
  • 36:8B:D3:22:8A:A5:D5:AC:32:DD:D3:36:37:21:EA:72:17:92:61:68
authorityKeyIdentifier
  • keyid:36:8B:D3:22:8A:A5:D5:AC:32:DD:D3:36:37:21:EA:72:17:92:61:68