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, 25 May 2020 09:21:50 +0000
However, we found problems that may affect the security.
These servers are responsible for incoming mails to @sp-con.de addresses.
Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
---|---|---|---|---|---|---|
exchsrv.sp-con.de
80.147.13.140
|
10 |
supported
|
https.proxy.nul |
|
3 s
|
|
relay.rzone.de
81.169.145.96
Results incomplete
|
100 |
supported
|
relay.rzone.de |
|
2 s
|
We have received emails from these servers with @sp-con.de sender addresses. Test mail delivery
Host | TLS Version & Cipher | |
---|---|---|
unknown (80.147.13.140) |
TLSv1.2
ECDHE-RSA-AES256-GCM-SHA384
|