Discover if the mail servers for mail.1.exchange.1and1.eu 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 Thu, 28 May 2020 04:10:04 +0000
However, we found problems that may affect the security.
These servers are responsible for incoming mails to @mail.1.exchange.1and1.eu addresses.
|Hostname / IP address||Priority||STARTTLS||Certificates||Protocol|
We have not received any emails from a @mail.1.exchange.1and1.eu address so far. Test mail delivery
Certificate is self-signed.