SSL-Tools

SSL check results of koubeikc.com

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Discover if the mail servers for koubeikc.com 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, 25 May 2020 00:30:56 +0000

error: Couldn't find Certificate with [WHERE (id=E'\\x04484d0861a88d6ba798f085a00df67cea1ad76e')]

The mailservers of koubeikc.com 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 @koubeikc.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mxbiz1.qq.com
203.205.232.191
 5
supported
pop.qq.com
DANE
missing
PFS
unsupported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
20 s
mxn.mxhichina.com
205.204.101.145
 5
supported
*.mxhichina.com
DANE
missing
PFS
unsupported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
24 s
mxbiz2.qq.com
203.205.232.191
 10
supported
pop.qq.com
DANE
missing
PFS
unsupported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
20 s
mxw.mxhichina.com
198.11.189.243
 10
supported
*.mxhichina.com
DANE
missing
PFS
unsupported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
22 s

Outgoing Mails

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

Certificates

First seen at:

CN=pop.qq.com,OU=R&D,O=Tencent Technology (Shenzhen) Company Limited,L=Shenzhen,ST=Guangdong,C=CN

Certificate chain
Subject
Country (C)
  • CN
State (ST)
  • Guangdong
Locality (L)
  • Shenzhen
Organization (O)
  • Tencent Technology (Shenzhen) Company Limited
Organizational Unit (OU)
  • R&D
Common Name (CN)
  • pop.qq.com
Alternative Names
  • pop.qq.com
  • dav.qq.com
  • ex.qq.com
  • smtp.qq.com
  • mx1.qq.com
  • imap.qq.com
  • mx2.qq.com
  • mxbiz2.qq.com
  • mxbiz1.qq.com
  • cloudmx.qq.com
  • mx3.qq.com
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • Secure Site CA G2
validity period
Not valid before
2019-10-23
Not valid after
2020-12-22
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C3:57:31:CF:83:C4:C7:40:F4:50:10:4F:35:8B:05:49:DD:5E:B9:C9:E2:47:61:8E:06:62:9D:7C:23:78:74:02
SHA1
04:48:4D:08:61:A8:8D:6B:A7:98:F0:85:A0:0D:F6:7C:EA:1A:D7:6E
X509v3 extensions
authorityKeyIdentifier
  • keyid:C4:11:7E:88:40:86:C2:41:BF:65:F3:1A:E1:B4:53:40:A3:AB:EC:7D
subjectKeyIdentifier
  • 74:96:AB:27:87:07:4A:99:B1:BC:71:DA:B6:38:39:E6:64:84:B2:95
crlDistributionPoints
  • Full Name:
  • URI:http://crl3.digicert.com/SecureSiteCAG2.crl
  • Full Name:
  • URI:http://crl4.digicert.com/SecureSiteCAG2.crl
certificatePolicies
  • Policy: 2.16.840.1.114412.1.1
  • CPS: https://www.digicert.com/CPS
  • Policy: 2.23.140.1.2.2
authorityInfoAccess
  • OCSP - URI:http://ocsp.dcocsp.cn
  • CA Issuers - URI:http://crl.digicert-cn.com/SecureSiteCAG2.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : BB:D9:DF:BC:1F:8A:71:B5:93:94:23:97:AA:92:7B:47:
  • 38:57:95:0A:AB:52:E8:1A:90:96:64:36:8E:1E:D1:85
  • Timestamp : Oct 23 02:49:58.347 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D3:C0:FB:9E:75:FC:59:01:55:F9:F3:
  • 8B:DF:11:95:7C:A3:5F:25:3B:9E:55:A9:E4:EE:4A:4E:
  • B0:49:7D:3D:4B:02:21:00:DF:84:EB:35:71:6F:2B:86:
  • A2:BC:A8:80:33:1E:78:6F:76:AD:49:27:E8:F1:39:9B:
  • EB:17:99:A8:B0:E2:DA:E7
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 5E:A7:73:F9:DF:56:C0:E7:B5:36:48:7D:D0:49:E0:32:
  • 7A:91:9A:0C:84:A1:12:12:84:18:75:96:81:71:45:58
  • Timestamp : Oct 23 02:49:58.335 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:7B:87:CE:07:B6:E4:1F:F7:48:71:38:8F:
  • 9D:6F:E7:B2:20:7F:56:90:EB:14:D8:63:4E:00:51:81:
  • 7D:AD:35:A1:02:21:00:8E:47:DA:70:42:C6:71:E3:2A:
  • 10:F2:57:DF:76:7F:E6:93:B4:42:D9:61:5D:B4:0C:5C:
  • A6:7B:3A:7A:34:A3:49
First seen at:

CN=*.mxhichina.com,O=Alibaba (China) Technology Co.\, Ltd.,L=HangZhou,ST=ZheJiang,C=CN

Certificate chain
Subject
Country (C)
  • CN
State (ST)
  • ZheJiang
Locality (L)
  • HangZhou
Organization (O)
  • Alibaba (China) Technology Co., Ltd.
Common Name (CN)
  • *.mxhichina.com
Alternative Names
  • *.mxhichina.com
  • mxhichina.com
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • GlobalSign Organization Validation CA - SHA256 - G2
validity period
Not valid before
2020-02-03
Not valid after
2021-02-03
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
86:65:9C:76:B5:4C:89:52:7E:06:2C:F5:A2:84:FB:6B:EB:1D:7D:B6:67:8D:E2:B7:29:34:A6:6B:25:73:09:F7
SHA1
17:E6:CD:28:15:2E:60:DE:42:EB:7F:7F:B4:49:FC:BD:E1:ED:8B:3D
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/gsorganizationvalsha2g2r1.crt
  • OCSP - URI:http://ocsp2.globalsign.com/gsorganizationvalsha2g2
certificatePolicies
  • Policy: 1.3.6.1.4.1.4146.1.20
  • CPS: https://www.globalsign.com/repository/
  • Policy: 2.23.140.1.2.2
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/gs/gsorganizationvalsha2g2.crl
authorityKeyIdentifier
  • keyid:96:DE:61:F1:BD:1C:16:29:53:1C:C0:CC:7D:3B:83:00:40:E6:1A:7C
subjectKeyIdentifier
  • 49:76:15:EA:F1:74:C3:80:4E:F5:FC:4A:8D:26:68:5E:B8:B7:9F:AC
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:C0:95:EE:8D:72:64:0F:92:E3:C3:B9:1B:C7:12:A3:
  • 69:6A:09:7B:4B:6A:1A:14:38:E6:47:B2:CB:ED:C5:F9
  • Timestamp : Feb 3 13:06:33.987 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:AC:BA:BF:1A:E3:96:1B:CC:0F:C3:FB:
  • C6:BF:EE:CB:DC:02:54:70:5D:05:C4:0E:17:14:3E:A9:
  • 97:56:DE:33:91:02:21:00:EF:5E:9A:D1:C9:15:54:E8:
  • 96:A2:AA:D0:48:78:35:50:BC:F6:AB:57:C0:85:B4:08:
  • A2:9C:5A:2E:0B:74:E7:87
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
  • E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
  • Timestamp : Feb 3 13:06:33.937 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D8:3B:A7:97:56:77:F9:7F:1F:58:D6:
  • 32:EB:F6:4F:67:62:AD:62:0D:C2:EF:2E:6C:F3:FD:2B:
  • F6:E0:4B:E5:A6:02:21:00:D7:2B:34:FB:57:C9:6F:C5:
  • D2:2F:ED:53:93:6D:B8:B7:00:BE:06:A5:B1:F3:92:22:
  • 86:EE:59:F6:1C:CB:D4:17