SSL-Tools

SSL check results of greatcactus.org

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Discover if the mail servers for greatcactus.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 Tue, 30 Jun 2020 23:40:17 +0000

The mailservers of greatcactus.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 @greatcactus.org addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.greatcactus.org
115.70.88.34
 10
supported
mail.greatcactus.org
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
17 s
mail1.no-ip.com
8.23.224.50
 20
supported
*.no-ip.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • SSL_RSA_WITH_RC4_128_SHA
  • SSL_RSA_EXPORT_WITH_RC4_40_MD5
  • TLSv1.0
  • SSLv3
7 s
mail2.no-ip.com
69.65.5.119
Results incomplete
30
supported
*.no-ip.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.no-ip.com

Certificate chain
Subject
Common Name (CN)
  • *.no-ip.com
Alternative Names
  • *.no-ip.com
  • no-ip.com
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • RapidSSL RSA CA 2018
validity period
Not valid before
2020-05-08
Not valid after
2020-11-09
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
9B:AB:0E:11:36:4A:15:E0:C9:F5:9F:59:78:97:DD:85:2E:6A:F9:30:DE:A1:9E:C5:75:07:1C:38:CD:14:3C:36
SHA1
26:8E:31:10:DE:A1:70:84:2E:3B:65:F4:A0:82:99:A3:DE:C2:B2:EC
X509v3 extensions
authorityKeyIdentifier
  • keyid:53:CA:17:59:FC:6B:C0:03:21:2F:1A:AE:E4:AA:A8:1C:82:56:DA:75
subjectKeyIdentifier
  • D3:EB:6C:70:85:71:3C:04:FD:6E:CB:17:C0:31:C3:21:F1:B7:F5:24
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.rapidssl.com/RapidSSLRSACA2018.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.rapidssl.com
  • CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLRSACA2018.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : May 8 17:56:33.097 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:78:77:03:CB:F4:39:74:D9:67:B5:36:96:
  • B8:95:5E:74:3E:A5:57:EB:A6:05:73:7C:F9:96:B7:BE:
  • B8:54:96:E5:02:20:52:3D:23:A3:A0:ED:34:19:9C:E3:
  • 1E:DF:67:CC:2A:CA:DD:1D:34:60:02:42:65:CD:03:0D:
  • 05:43:3E:AA:9D:04
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : F0:95:A4:59:F2:00:D1:82:40:10:2D:2F:93:88:8E:AD:
  • 4B:FE:1D:47:E3:99:E1:D0:34:A6:B0:A8:AA:8E:B2:73
  • Timestamp : May 8 17:56:33.128 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:85:1D:BF:F2:7B:80:1F:E0:12:F6:0B:
  • 41:2F:1C:82:0C:9D:FD:47:1A:1E:05:1A:F1:B6:39:7E:
  • 66:7F:18:36:1E:02:21:00:9C:F5:E3:E8:C4:BA:2F:9B:
  • A0:BF:8D:14:A4:30:D8:56:EE:9A:15:BF:3E:0A:41:C1:
  • 79:6B:22:7F:A9:F3:97:C4
First seen at:

CN=mail.greatcactus.org

Certificate chain
Subject
Common Name (CN)
  • mail.greatcactus.org
Alternative Names
  • mail.andrewconway.org
  • mail.greatcactus.org
  • mail.thinkingcybersecurity.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-04-14
Not valid after
2020-07-13
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C8:BE:E1:3E:4F:BF:EB:45:35:B3:63:D2:A8:03:66:4C:47:FE:D4:AC:7E:47:EC:F5:3E:51:3F:59:88:FB:3C:67
SHA1
11:3A:AF:77:BE:EA:D4:D8:89:22:83:33:1F:12:88:B1:59:A8:CF:79
X509v3 extensions
subjectKeyIdentifier
  • B2:E0:7D:32:A3:9D:01:01:E0:CE:F8:05:A4:86:DA:77:23:0C:CF:1F
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : Apr 14 05:13:34.575 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:0C:3D:07:8F:71:84:27:57:A8:EA:09:BF:
  • 7E:59:23:71:07:22:21:CD:93:35:9D:BF:02:16:F3:92:
  • 0B:97:92:72:02:21:00:C9:5E:76:B1:42:7E:41:5A:5A:
  • 49:29:83:24:3A:11:EB:C7:94:47:A2:90:C6:CF:D6:AF:
  • 10:A1:18:2D:67:2D:78
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E7:12:F2:B0:37:7E:1A:62:FB:8E:C9:0C:61:84:F1:EA:
  • 7B:37:CB:56:1D:11:26:5B:F3:E0:F3:4B:F2:41:54:6E
  • Timestamp : Apr 14 05:13:34.585 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D9:65:DA:87:F9:EA:13:9D:28:98:E4:
  • 30:04:D2:A4:A2:C2:F9:2A:25:97:DC:89:77:A5:6E:5D:
  • 2A:19:04:1A:C1:02:20:5F:E3:2B:D7:0C:65:76:E2:1B:
  • C1:F2:C3:7D:18:DB:BE:B3:30:E1:D7:63:8A:ED:FE:1C:
  • 88:E5:A8:F6:8E:E3:8C