SSL check results of mail.auto-kuehn.de

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Discover if the mail servers for mail.auto-kuehn.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

Report created Mon, 12 Aug 2019 10:01:57 +0000

We can not guarantee a secure connection to the mailservers of mail.auto-kuehn.de!

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

https://ssl-tools.net/mailservers/mail.auto-kuehn.de

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.auto-kuehn.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.auto-kuehn.de
134.97.100.110
10
supported
mail.example.org
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
relay.rzone.de
81.169.145.96
Results incomplete
100
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.example.org,O=mailcow

Certificate chain
  • mail.example.org
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority

Subject
Organization (O)
  • mailcow
Common Name (CN)
  • mail.example.org
Issuer
Organization (O)
  • mailcow
validity period
Not valid before
2016-12-13
Not valid after
2019-11-28
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • Key Agreement
  • TLS Web Client Authentication
  • TLS Web Server Authentication
Fingerprints
SHA256
AF:A0:07:98:10:2A:70:81:26:53:F3:30:4F:25:98:54:2D:1F:F3:D6:9F:33:EA:F6:90:19:49:6D:4E:9C:96:54
SHA1
75:9E:94:74:C9:77:BF:E7:B7:A3:55:79:41:F4:D9:36:AE:A9:A8:AA