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SSL check results of zelx.de

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Discover if the mail servers for zelx.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, 15 Jul 2024 09:47:12 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
zelx.de
81.169.137.219
 20
supported
zelx.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
4 s

Outgoing Mails

We have received emails from these servers with @zelx.de sender addresses. Test mail delivery

Host TLS Version & Cipher
server.zelx.de (81.169.137.219)
TLSv1.3 TLS_AES_256_GCM_SHA384
server.zelx.de (81.169.200.227)
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384

Certificates

First seen at:

CN=zelx.de

Certificate chain
Subject
Common Name (CN)
  • zelx.de
Alternative Names
  • zelx.de
  • www.zelx.de
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • Encryption Everywhere DV TLS CA - G2
validity period
Not valid before
2024-07-15
Not valid after
2025-07-15
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
4C:22:C7:8F:D5:86:85:FD:93:2C:DC:B2:DD:1D:4B:03:DB:AF:D6:05:8C:AB:91:23:C3:B3:A0:B7:21:25:18:EA
SHA1
20:9D:A8:44:5F:AD:CD:07:74:E5:CF:99:53:53:D6:2E:25:49:E3:4E
X509v3 extensions
authorityKeyIdentifier
  • keyid:78:DF:91:90:5F:EE:DE:AC:F6:C5:75:EB:D5:4C:55:53:EF:24:4A:B6
subjectKeyIdentifier
  • 30:66:0C:FC:FC:11:C1:67:7D:DC:D5:1A:8F:90:91:BD:9B:60:79:BB
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • CPS: http://www.digicert.com/CPS
authorityInfoAccess
  • OCSP - URI:http://ocsp.digicert.com
  • CA Issuers - URI:http://cacerts.digicert.com/EncryptionEverywhereDVTLSCA-G2.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DD:DC:CA:34:95:D7:E1:16:05:E7:95:32:FA:C7:9F:F8:
  • 3D:1C:50:DF:DB:00:3A:14:12:76:0A:2C:AC:BB:C8:2A
  • Timestamp : Jul 15 09:37:27.583 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:1C:C3:7F:B9:D3:42:FC:10:CD:6A:7C:EF:
  • B1:C1:18:40:5B:D0:67:A2:17:AA:C6:F1:A9:92:01:84:
  • 7A:09:60:60:02:20:7F:7E:4F:29:79:52:C0:85:7D:F1:
  • B3:57:9D:73:C9:EA:10:C5:25:6F:B5:5D:38:85:32:54:
  • 41:7A:CB:0B:F6:38
  • 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 : Jul 15 09:37:27.599 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B3:42:B5:2D:AF:88:C0:DD:3E:AA:1E:
  • 91:5C:8C:95:EF:3B:46:0D:6C:81:63:AA:8F:F2:53:C1:
  • F9:1B:66:B9:B2:02:20:4E:CF:E3:BE:6A:44:9C:00:E6:
  • DF:B5:92:59:83:F1:A7:BC:9D:2C:9C:22:74:9E:DE:26:
  • 5C:D6:05:05:1C:7C:87
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1:
  • D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50
  • Timestamp : Jul 15 09:37:27.651 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:60:E1:7B:83:CF:D1:71:D2:4B:12:42:70:
  • F3:F7:04:2F:A4:AF:05:5C:52:3C:82:F4:A1:EA:22:89:
  • B9:BE:BF:D9:02:20:2A:1F:99:3E:4B:AF:8D:DE:D7:C3:
  • 8A:43:23:97:6D:9B:2F:E2:3A:8B:11:F0:BF:5B:C0:A7:
  • 29:94:CD:7A:49:A8