Discover if the mail servers for koelln.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 Thu, 28 May 2020 07:47:57 +0000
However, we found problems that may affect the security.
These servers are responsible for incoming mails to @koelln.de addresses.
Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
---|---|---|---|---|---|---|
mailrelay.peterkoelln.de
80.66.193.98
|
10 |
supported
|
mailrelay.peterkoelln.de |
|
12 s
|
|
mailrelay2.peterkoelln.de
80.66.193.103
|
90 |
supported
|
mailrelay.peterkoelln.de |
|
12 s
|
We have not received any emails from a @koelln.de address so far. Test mail delivery
Certificate is self-signed.