Discover if the mail servers for box.letterninja.me 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 Fri, 05 Jan 2024 08:18:42 +0000
error: DNS Error: NXDomain (box.letterninja.me)
These servers are responsible for incoming mails to @box.letterninja.me addresses.
No DNS records found
We have not received any emails from a @box.letterninja.me address so far. Test mail delivery
No Certificates found
Heartbleed