Discover if the mail servers for jollausers.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
Explicit Text: This certificate was issued according to the Class 2 Validation requirements of the StartCom CA policy, reliance only for the intended purpose in compliance of the relying party obligations.