SSL-Tools

SSL check results of intertux.org

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Discover if the mail servers for intertux.org 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 Wed, 17 Jun 2020 00:32:51 +0000

The mailservers of intertux.org can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @intertux.org addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
intertux.org
78.94.227.30
 10
supported
*.intertux.org
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
9 s
relay.rzone.de
81.169.145.96
Results incomplete
200
supported
relay.rzone.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=relay.rzone.de

Certificate chain
Subject
Common Name (CN)
  • relay.rzone.de
Alternative Names
  • relay.rzone.de
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • Thawte RSA CA 2018
validity period
Not valid before
2020-03-06
Not valid after
2021-04-24
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
34:53:C7:4F:D4:E8:F1:BD:28:40:87:2A:F5:63:49:3A:FF:E9:D5:66:DB:C5:A0:7B:F3:8C:0F:91:2B:EC:6A:D3
SHA1
90:77:6D:44:1A:78:DC:4F:CF:84:72:38:86:D5:C4:58:83:6E:63:01
X509v3 extensions
authorityKeyIdentifier
  • keyid:A3:C8:5E:65:54:E5:30:78:C1:05:EA:07:0A:6A:59:CC:B9:FE:DE:5A
subjectKeyIdentifier
  • 0B:8A:47:A5:72:46:95:E7:B1:61:5C:5C:D3:0E:6E:D5:25:F9:EA:5B
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.thawte.com/ThawteRSACA2018.crl
certificatePolicies
  • Policy: 2.16.840.1.114412.1.2
  • CPS: https://www.digicert.com/CPS
  • Policy: 2.23.140.1.2.1
authorityInfoAccess
  • OCSP - URI:http://status.thawte.com
  • CA Issuers - URI:http://cacerts.thawte.com/ThawteRSACA2018.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 7D:3E:F2:F8:8F:FF:88:55:68:24:C2:C0:CA:9E:52:89:
  • 79:2B:C5:0E:78:09:7F:2E:6A:97:68:99:7E:22:F0:D7
  • Timestamp : Mar 6 19:04:09.482 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:1D:6C:2A:BD:82:8C:D2:74:1B:B8:6F:C4:
  • AA:B7:4B:A3:03:40:5F:C6:CD:23:2E:BE:15:57:E8:2C:
  • D8:9F:47:07:02:21:00:C1:0E:51:3F:36:07:4B:2A:66:
  • A0:1D:5C:03:F5:33:36:34:75:EB:5E:77:8C:15:B2:81:
  • AA:84:2D:00:6A:52:8D
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 5C:DC:43:92:FE:E6:AB:45:44:B1:5E:9A:D4:56:E6:10:
  • 37:FB:D5:FA:47:DC:A1:73:94:B2:5E:E6:F6:C7:0E:CA
  • Timestamp : Mar 6 19:04:09.482 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:F8:8B:92:66:69:A4:49:43:03:DE:0D:
  • FC:BA:1A:76:94:44:C6:DA:D0:A1:A9:37:31:F3:88:AB:
  • D5:F8:0F:7E:16:02:20:61:A6:84:99:F7:CF:B9:1E:02:
  • 54:69:7A:3C:3D:EE:23:E3:B9:CE:F8:49:54:4D:9F:D9:
  • 76:A8:24:28:8A:04:A5
First seen at:

CN=*.intertux.org,O=intertux.org,OU=Proxmox Mail Gateway

Certificate chain
  • *.intertux.org (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
Subject
Organizational Unit (OU)
  • Proxmox Mail Gateway
Organization (O)
  • intertux.org
Common Name (CN)
  • *.intertux.org
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-05-31
Not valid after
2030-05-29
Fingerprints
SHA256
8C:3D:43:AE:2F:5F:0D:77:5D:40:30:A4:62:C3:4F:3A:98:57:16:BB:88:9B:B9:0D:5C:89:FB:27:2B:22:5C:DC
SHA1
1F:53:91:72:07:4D:C4:B9:0E:3E:65:C5:03:1C:3C:36:67:D8:59:D0