SSL-Tools

SSL check results of demosystem.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for demosystem.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.

Summary

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Report created Tue, 23 Apr 2024 11:14:24 +0000

We can not guarantee a secure connection to the mailservers of demosystem.de!

Please contact the operator of demosystem.de and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/demosystem.de

Servers

Incoming Mails

These servers are responsible for incoming mails to @demosystem.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.demosystem.de
217.89.135.77
 10
supported
mail.demosystem.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s
domino.demosystem.de
217.89.135.72
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s

Outgoing Mails

We have not received any emails from a @demosystem.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.demosystem.de

Certificate chain
  • mail.demosystem.de (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Common Name (CN)
  • mail.demosystem.de
Alternative Names
  • mail.demosystem.de
  • dss-ex16.ad.demosystem.de
  • AutoDiscover.ad.demosystem.de
  • AutoDiscover.e-motix.de
  • AutoDiscover.demosystem.de
  • dss-ex16
  • ad.demosystem.de
  • e-motix.de
  • demosystem.de
Issuer

Certificate is self-signed.

validity period
Not valid before
2023-06-29
Not valid after
2028-06-29
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
2F:54:06:C1:08:35:AB:6B:B2:3C:79:E1:06:61:55:63:78:18:42:4C:CE:F5:FB:FB:F0:FC:A8:38:E0:87:68:C0
SHA1
4C:E8:07:37:60:DD:4B:27:67:04:98:11:17:9E:69:58:7E:90:E9:79