Discover if the mail servers for cztech.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 Wed, 14 Apr 2021 10:16:17 +0000
These servers are responsible for incoming mails to @cztech.cz addresses.
| Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
|---|---|---|---|---|---|---|
|
mail.cztech.cz
31.30.4.130
Results incomplete
|
10 |
supported
|
not checked |
|
1 s
|
We have received emails from these servers with @cztech.cz sender addresses. Test mail delivery
| Host | TLS Version & Cipher | |
|---|---|---|
| mail.cztech.cz (31.30.4.130) |
TLSv1.2
ECDHE-RSA-AES256-SHA384
|
No Certificates found
Heartbleed