SSL-Tools

SSL check results of hrad.cz

NEW You can also bulk check multiple servers.

Discover if the mail servers for hrad.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

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Report created Mon, 22 Aug 2022 11:17:51 +0000

No connection to the mailservers of hrad.cz could be established.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
imail2.hrad.cz
2001:67c:2cc0:2f00::101
Results incomplete
10
supported
not checked
DANE
errors
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
imail2.hrad.cz
194.213.204.101
Results incomplete
10
supported
not checked
DANE
errors
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
imail1.hrad.cz
2001:67c:2cc0:1f00::100
Results incomplete
20
supported
not checked
DANE
errors
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
imail1.hrad.cz
193.179.6.100
Results incomplete
20
supported
not checked
DANE
errors
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

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

Certificates

No Certificates found

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.imail2.hrad.cz
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
—
_25._tcp.imail1.hrad.cz
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
—