SSL-Tools

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 Tue, 11 Jul 2023 11:50:00 +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
 -
supported
zelx.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 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
2023-07-10
Not valid after
2024-07-13
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
83:61:CB:06:52:4A:21:86:4F:4B:63:BC:48:07:A0:E7:87:7F:69:D1:79:3D:80:06:D9:2B:6C:07:E0:75:93:EB
SHA1
0D:B4:84:BC:12:C3:52:36:62:8B:8F:00:C1:3C:15:19:04:1A:09:DF
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
  • 21:60:6E:8D:FB:74:15:34:0E:46:86:9F:02:54:70:B8:24:30:26:27
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 : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Jul 10 17:52:02.677 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:37:BC:12:7A:05:C1:A4:65:EC:7B:CD:C3:
  • 5D:20:43:F4:CA:E9:98:99:22:64:35:D5:F1:6C:3F:10:
  • C7:81:32:AC:02:20:38:56:3F:B2:91:92:C0:E0:96:EE:
  • 60:5C:96:F3:1A:39:87:EE:86:53:E2:2C:69:4D:F3:A3:
  • 5D:6B:3F:2B:79:60
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Jul 10 17:52:02.699 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:A3:A3:F2:09:75:8D:27:3F:94:0C:10:
  • EE:75:E7:C4:15:67:E0:9C:13:EA:53:36:76:F7:33:33:
  • 0C:D5:A9:F1:60:02:20:7C:19:56:80:1B:F7:C7:08:3F:
  • 47:93:DD:A2:AE:D2:88:D3:78:35:A7:2C:62:6D:28:BC:
  • 07:7E:C7:71:ED:14:58
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
  • 91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
  • Timestamp : Jul 10 17:52:02.589 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:48:EC:36:AE:D0:DE:D7:2E:0B:25:75:6B:
  • F3:FD:CB:FC:62:40:C2:59:CE:95:E7:92:38:23:7B:C4:
  • 09:7A:4F:94:02:21:00:82:0B:BB:FC:42:44:B7:D5:9F:
  • 77:BC:BE:43:CE:E0:F8:91:C7:C9:51:24:FE:EA:90:13:
  • CF:CB:04:F1:51:96:26