SSL-Tools

SSL check results of carstenwegner.de

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Discover if the mail servers for carstenwegner.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 Mon, 03 Nov 2025 10:32:46 +0000

The mailservers of carstenwegner.de can be reached through a secure connection.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.carstenwegner.de
2a01:4f8:1c1a:c354::1
 10
supported
mail.carstenwegner.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mail.carstenwegner.de
91.99.61.3
 10
supported
mail.carstenwegner.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.carstenwegner.de

Certificate chain
  • mail.carstenwegner.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R12
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.carstenwegner.de
Alternative Names
  • autoconfig.carstenwegner.de
  • autoconfig.cwzone.de
  • autodiscover.carstenwegner.de
  • autodiscover.cwzone.de
  • mail.carstenwegner.de
  • mta-sts.carstenwegner.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R12
validity period
Not valid before
2025-11-02
Not valid after
2026-01-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
F8:89:F6:68:03:EF:3D:14:6F:AB:EC:9B:14:E4:B6:74:66:6D:32:AE:46:1D:DC:FA:A5:D1:E5:A9:B5:77:F6:1A
SHA1
E9:3C:BF:71:CC:4B:90:63:36:63:E4:A5:AE:BD:CA:86:13:D6:19:3E
X509v3 extensions
subjectKeyIdentifier
  • F4:14:CA:CF:62:21:A3:96:3B:77:9D:31:31:E6:F5:57:3D:C8:B1:5D
authorityKeyIdentifier
  • keyid:00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
authorityInfoAccess
  • CA Issuers - URI:http://r12.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r12.c.lencr.org/34.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 96:97:64:BF:55:58:97:AD:F7:43:87:68:37:08:42:77:
  • E9:F0:3A:D5:F6:A4:F3:36:6E:46:A4:3F:0F:CA:A9:C6
  • Timestamp : Nov 2 08:03:34.251 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:DB:54:80:B1:92:D6:4D:AD:F4:17:C3:
  • 21:67:94:5B:17:4A:2C:87:FA:27:BA:77:64:5A:7D:6F:
  • 92:40:E1:95:7A:02:20:72:F6:D1:6E:E2:AA:4B:A4:63:
  • CC:D2:1E:A4:73:CD:AD:B8:DF:28:B9:0A:C0:47:2D:EF:
  • 06:04:E2:C3:41:EE:0A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 64:11:C4:6C:A4:12:EC:A7:89:1C:A2:02:2E:00:BC:AB:
  • 4F:28:07:D4:1E:35:27:AB:EA:FE:D5:03:C9:7D:CD:F0
  • Timestamp : Nov 2 08:03:36.174 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E0:F6:87:DC:96:D4:93:C6:D0:B5:91:
  • 7D:57:37:7B:46:94:C6:2C:59:E8:80:FE:40:97:82:87:
  • C2:5D:E2:BC:85:02:20:2B:D2:6E:AB:41:37:E1:C7:95:
  • 67:BC:05:CD:29:26:B8:64:95:95:C9:B6:CE:77:51:28:
  • 6C:B2:ED:C3:1E:E6:F5

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.mail.carstenwegner.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
error
Debug
valid