Discover if the mail servers for cs523.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 Sun, 03 Mar 2024 11:46:52 +0000
These servers are responsible for incoming mails to @cs523.de addresses.
Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
---|---|---|---|---|---|---|
mail.cs523.de
2a01:4f8:c2c:9fa6::1
|
10 |
supported
|
mail.cs523.de |
|
6 s
|
|
mail.cs523.de
167.235.67.221
|
10 |
supported
|
mail.cs523.de |
|
4 s
|
We have not received any emails from a @cs523.de address so far. Test mail delivery
DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.
Name | Options | DNSSEC | Matches |
---|---|---|---|
_25._tcp.mail.cs523.de |
|
valid
|
valid
|