SSL-Tools

SSL check results of teckbote.de

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Discover if the mail servers for teckbote.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 Wed, 08 Nov 2023 22:22:35 +0000

The mailservers of teckbote.de can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail2.teckbote.de
37.24.36.190
 10
supported
gk-teckbote.nepustil.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mail.teckbote.de
212.71.211.33
 50
supported
gk-teckbote.nepustil.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=gk-teckbote.nepustil.net,O=Dr.-Ing. Nepustil & Co. GmbH,L=Bempflingen,C=de

Certificate chain
  • gk-teckbote.nepustil.net
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
      Dr.-Ing. Nepustil & Co. GmbH WebAdmin CA
Subject
Country (C)
  • de
Locality (L)
  • Bempflingen
Organization (O)
  • Dr.-Ing. Nepustil & Co. GmbH
Common Name (CN)
  • gk-teckbote.nepustil.net
Alternative Names
  • gk-teckbote.nepustil.net
Issuer
Country (C)
  • de
Locality (L)
  • Bempflingen
Organization (O)
  • Dr.-Ing. Nepustil & Co. GmbH
Common Name (CN)
  • Dr.-Ing. Nepustil & Co. GmbH WebAdmin CA
Email
  • ops@nepustil.net
validity period
Not valid before
2018-02-14
Not valid after
2038-01-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • Non Repudiation
  • Key Encipherment
Fingerprints
SHA256
53:B7:5E:F5:D1:A2:12:48:5A:75:41:B6:9E:0F:B7:D0:41:74:27:C9:AA:2A:8D:00:0C:0B:4C:CB:0F:4B:1C:7A
SHA1
B5:AF:0A:28:D3:22:B2:A7:27:F1:12:83:BD:CC:7D:FC:B8:0B:21:39
X509v3 extensions
subjectKeyIdentifier
  • C9:6D:03:99:63:79:99:5E:19:29:65:98:36:7C:08:C9:40:BC:94:F1
authorityKeyIdentifier
  • keyid:F9:72:ED:61:19:1E:AD:D6:1A:9A:A5:AA:F2:D0:6C:A2:CC:F4:D8:DF
  • DirName:/C=de/L=Bempflingen/O=Dr.-Ing. Nepustil & Co. GmbH/CN=Dr.-Ing. Nepustil & Co. GmbH WebAdmin CA/emailAddress=ops@nepustil.net
  • serial:B3:F0:8E:36:E1:33:CF:4E