Discover if the mail servers for sp-con.de 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, 17 Feb 2020 01:30:33 +0000
These servers are responsible for incoming mails to @sp-con.de addresses.
|Hostname / IP address||Priority||STARTTLS||Certificates||Protocol|
We have received emails from these servers with @sp-con.de sender addresses. Test mail delivery
|Host||TLS Version & Cipher|
No Certificates found