SSL-Tools

SSL check results of qubes-os.org

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Discover if the mail servers for qubes-os.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 Mon, 03 Jul 2017 23:34:13 +0000

We can not guarantee a secure connection to the mailservers of qubes-os.org!

Please contact the operator of qubes-os.org and ask him or her to solve this problem. This result stays accessible under the following address:

https://ssl-tools.net/mailservers/qubes-os.org

Servers

Incoming Mails

These servers are responsible for incoming mails to @qubes-os.org addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx.zoho.com
204.141.32.121
 10
supported
*.zoho.com
DANE
missing
PFS
unsupported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8.0 s
mx2.zoho.com
216.52.73.55
 20
supported
*.zoho.com
DANE
missing
PFS
unsupported
Heartbleed
not vulnerable
Weak ciphers
supported
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
8.0 s
mx3.zoho.com
8.39.55.177
Results incomplete
50 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1.0 s

Outgoing Mails

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

Certificates

First seen at:

*.zoho.com

Certificate chain
Subject
Common Name (CN)
  • *.zoho.com
Alternative Names
  • *.zoho.com
  • zoho.com
Issuer
Country (C)
  • US
Organization (O)
  • thawte, Inc.
Organizational Unit (OU)
  • Domain Validated SSL
Common Name (CN)
  • thawte DV SSL CA - G2
validity period
Not valid before
2016-09-01
Not valid after
2018-09-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
04:02:82:25:13:19:DB:47:C1:30:CA:6D:93:45:4F:8C:4B:1A:19:24:E6:D5:09:5A:80:E0:DF:92:49:64:8F:0E
SHA1
10:72:1E:8E:C1:05:77:F2:27:9B:0E:12:14:27:C5:96:0F:71:2F:B6
X509v3 extensions
crlDistributionPoints
  • Full Name:
  • URI:http://tn.symcb.com/tn.crl
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • CPS: https://www.thawte.com/cps
  • User Notice:
  • Explicit Text: https://www.thawte.com/repository
authorityKeyIdentifier
  • keyid:9F:B8:C1:A9:6C:F2:F5:C0:22:2A:94:ED:5C:99:AC:D4:EC:D7:C6:07
authorityInfoAccess
  • OCSP - URI:http://tn.symcd.com
  • CA Issuers - URI:http://tn.symcb.com/tn.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1(0)
  • Log ID : DD:EB:1D:2B:7A:0D:4F:A6:20:8B:81:AD:81:68:70:7E:
  • 2E:8E:9D:01:D5:5C:88:8D:3D:11:C4:CD:B6:EC:BE:CC
  • Timestamp : Sep 1 10:40:13.948 2016 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:13:CE:42:0F:B5:13:56:46:42:6B:0D:C7:
  • C3:03:6D:5A:AA:B5:1F:DD:10:54:F7:4D:84:9C:E6:09:
  • EE:1A:C8:0C:02:21:00:B7:EF:28:FC:6D:91:70:31:3C:
  • CE:FC:29:6F:40:19:AA:A7:86:5E:1D:53:96:99:AA:65:
  • D9:06:4D:82:2E:23:41
  • Signed Certificate Timestamp:
  • Version : v1(0)
  • Log ID : A4:B9:09:90:B4:18:58:14:87:BB:13:A2:CC:67:70:0A:
  • 3C:35:98:04:F9:1B:DF:B8:E3:77:CD:0E:C8:0D:DC:10
  • Timestamp : Sep 1 10:40:14.241 2016 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:0F:EF:9C:61:68:69:E6:3A:F9:2B:4D:64:
  • 9E:8E:9D:F2:16:B5:87:3F:68:A3:B7:AF:DC:31:A5:6E:
  • 7E:E0:00:C8:02:20:53:FA:E1:D9:DB:FA:A4:69:B6:CE:
  • 9A:BA:DB:06:A9:47:94:6E:04:BA:D5:DA:FD:23:D0:73:
  • 57:08:1D:F8:FD:46
  • Signed Certificate Timestamp:
  • Version : v1(0)
  • Log ID : 68:F6:98:F8:1F:64:82:BE:3A:8C:EE:B9:28:1D:4C:FC:
  • 71:51:5D:67:93:D4:44:D1:0A:67:AC:BB:4F:4F:FB:C4
  • Timestamp : Sep 1 10:40:14.277 2016 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E4:F2:B2:C2:8C:23:61:5F:16:F6:5E:
  • 6E:13:22:00:40:52:11:17:75:A9:03:31:F9:75:63:5A:
  • BD:35:20:14:35:02:20:67:39:A2:13:AE:DE:C2:9B:7C:
  • B1:F3:DD:F0:27:07:32:E0:21:C2:3D:3A:1E:0C:52:7E:
  • D4:CC:25:98:FE:24:04