Discover if the mail servers for smtp.hs20.net 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, 29 Sep 2021 06:01:30 +0000
error: DNS Error: NXDomain (smtp.hs20.net)
These servers are responsible for incoming mails to @smtp.hs20.net addresses.
No DNS records found
We have not received any emails from a @smtp.hs20.net address so far. Test mail delivery
No Certificates found
Heartbleed