SSL-Tools

SSL check results of mail.mueller-kl.de

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Discover if the mail servers for mail.mueller-kl.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

JSON Refresh

Report created Sat, 21 Dec 2024 01:30:08 +0000

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

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

/mailservers/mail.mueller-kl.de

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.mueller-kl.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.mueller-kl.de
84.190.244.229
 -
supported
mueller-kl.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mail.mueller-kl.de
fd00::f279:59ff:fe64:b07
Results incomplete
- not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

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

Certificates

First seen at:

CN=mueller-kl.de

Certificate chain
  • mueller-kl.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
      R10
Subject
Common Name (CN)
  • mueller-kl.de
Alternative Names
  • aldebaran.mueller-kl.de
  • imap.mueller-kl.de
  • mail.mueller-kl.de
  • mueller-kl.de
  • pop.mueller-kl.de
  • smtp.mueller-kl.de
  • www.mueller-kl.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2024-12-19
Not valid after
2025-03-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
BA:5E:63:00:55:D4:D0:3A:6F:1C:C9:9B:9A:64:09:55:B6:89:AB:08:DF:F5:31:8D:DD:E7:C7:4C:03:B4:2E:F4
SHA1
F2:50:24:3E:B9:AE:7A:6E:3C:F1:4F:60:A9:06:E0:3E:E2:4D:2F:73
X509v3 extensions
subjectKeyIdentifier
  • 5E:2A:70:E3:4E:27:E5:EC:19:FD:82:75:2B:56:00:7F:2B:20:26:EE
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Dec 19 21:38:00.870 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:46:5A:B6:2A:D1:64:AB:C0:05:D9:C1:CF:
  • AE:18:60:56:5B:20:1E:84:00:7F:93:CC:31:04:E4:B6:
  • 40:AE:D1:2D:02:20:5B:50:8E:17:03:CF:D3:9A:D6:17:
  • A2:06:0E:1D:B1:EF:AC:A6:BA:52:DB:9E:99:2A:5A:F1:
  • 30:CD:57:9A:5D:95
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB:
  • 1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF
  • Timestamp : Dec 19 21:38:00.851 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:04:C9:00:0F:B4:1A:AC:32:30:B0:A5:65:
  • 26:2C:A3:3D:6C:F6:BB:B8:A3:CE:68:D8:4E:04:D2:FE:
  • F5:9E:93:37:02:20:78:B2:E1:07:C9:56:FE:9B:0D:2C:
  • 78:68:43:BC:02:21:C0:8A:41:EA:2B:71:F6:B5:E2:39:
  • AB:72:BE:DD:43:15