Discover if the mail servers for dx.spamfree.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 Jun 2020 00:32:03 +0000
These servers are responsible for incoming mails to @dx.spamfree.cz addresses.
| Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
|---|---|---|---|---|---|---|
|
dx.spamfree.cz
195.24.76.170
Results incomplete
|
- |
supported
|
not checked |
|
1 s
|
|
|
dx.spamfree.cz
2001:67c:15a3::d1
Results incomplete
|
- |
unsupported
|
not checked |
|
3 s
|
We have not received any emails from a @dx.spamfree.cz address so far. Test mail delivery
No Certificates found
Heartbleed