Discover if the mail servers for smart-mail.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 Wed, 14 Dec 2022 13:36:41 +0000
These servers are responsible for incoming mails to @smart-mail.de addresses.
|Hostname / IP address||Priority||STARTTLS||Certificates||Protocol|
We have received emails from these servers with @smart-mail.de sender addresses. Test mail delivery
|Host||TLS Version & Cipher|
No Certificates found
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.