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.
Report created Mon, 22 Aug 2022 11:17:51 +0000
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 |
|
1 s
|
|
imail2.hrad.cz
194.213.204.101
Results incomplete
|
10 |
supported
|
not checked |
|
1 s
|
|
imail1.hrad.cz
2001:67c:2cc0:1f00::100
Results incomplete
|
20 |
supported
|
not checked |
|
1 s
|
|
imail1.hrad.cz
193.179.6.100
Results incomplete
|
20 |
supported
|
not checked |
|
1 s
|
We have not received any emails from a @hrad.cz address so far. Test mail delivery
No Certificates found
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 |
|
valid
|
— |
_25._tcp.imail1.hrad.cz |
|
valid
|
— |