Discover if the mail servers for keppler-it.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, 15 Jun 2025 00:31:08 +0000
These servers are responsible for incoming mails to @keppler-it.de addresses.
Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
---|---|---|---|---|---|---|
mail.keppler-it.de
2a01:4f8:bb:c00::1:2
|
10 |
supported
|
secure.keppler-it.de |
|
1 s
|
|
mail.keppler-it.de
88.198.223.3
|
10 |
supported
|
secure.keppler-it.de |
|
1 s
|
We have not received any emails from a @keppler-it.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.keppler-it.de |
|
valid
|
valid
|