SSL-Tools

SSL check results of seelwerk.de

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Discover if the mail servers for seelwerk.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 Sat, 07 Dec 2024 17:18:07 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.proschko-it.de
167.86.67.194
 10
supported
mail.proschko-it.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
4 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.proschko-it.de

Certificate chain
  • mail.proschko-it.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.proschko-it.de
Alternative Names
  • mail.proschko-it.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2024-11-13
Not valid after
2025-02-11
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
33:29:51:86:47:50:98:F3:64:81:74:14:87:C2:2E:2C:F5:B2:A0:AC:E6:2F:99:26:97:51:D3:A2:C9:3C:9E:FA
SHA1
96:41:39:3D:4E:A5:4C:1E:58:D7:9E:43:AA:1A:D9:D3:F4:7D:51:26
X509v3 extensions
subjectKeyIdentifier
  • 07:10:5F:92:F6:97:7A:0C:D7:59:44:DA:C1:E5:CE:21:95:71:C5:58
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • OCSP - URI:http://r11.o.lencr.org
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Nov 13 09:50:47.850 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:6D:B5:5C:F9:CD:96:AC:A6:0D:09:A5:D4:
  • F0:50:D1:96:EF:22:D5:FA:14:8B:23:89:44:22:61:19:
  • A4:FB:E1:F8:02:21:00:F7:2D:B8:E1:BB:A4:2C:D0:1E:
  • 8C:08:E1:06:D0:93:EC:02:65:1A:1D:34:CF:4B:35:39:
  • DE:E8:B9:85:8D:5C:72
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0:
  • 87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8
  • Timestamp : Nov 13 09:50:49.674 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:63:05:51:4E:CB:1D:1E:6F:50:E5:7E:EE:
  • 5E:3C:87:6E:F4:E7:87:F7:BF:FD:2A:F4:0A:17:2F:89:
  • 16:5A:E5:52:02:21:00:B1:51:8F:0B:D5:0C:DA:EA:CC:
  • 23:10:A6:12:22:D6:E6:0D:49:DC:43:3F:9B:3A:B7:71:
  • 58:7D:44:A8:F7:79:19