Discover if the mail servers for holzinger-klemm.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, 21 Jul 2021 12:41:45 +0000
Please contact the operator of holzinger-klemm.de and ask him or her to solve this problem. This result stays accessible under the following address:
These servers are responsible for incoming mails to @holzinger-klemm.de addresses.
| Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
|---|---|---|---|---|---|---|
| 
mail.holzinger-klemm.de
 2003:2:2:15:80:150:6:143 
Results incomplete
 
 | 
10 | not checked | 
 | 
 11 s 
 | 
||
| 
mail.holzinger-klemm.de
 217.91.195.191 
 | 
10 | 
 
supported
 
 | 
wall.hkgbr | 
  | 
 3 s 
 | 
We have not received any emails from a @holzinger-klemm.de address so far. Test mail delivery