SSL-Tools

SSL check results of thebletchley.co.uk

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Discover if the mail servers for thebletchley.co.uk 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 Sun, 07 Jun 2026 00:30:47 +0000

The mailservers of thebletchley.co.uk can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @thebletchley.co.uk addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx10.antispam.mailspamprotection.com
34.149.79.66
 10
supported
*.antispam.mailspamprotection.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
15 s
mx20.antispam.mailspamprotection.com
34.120.156.61
 20
supported
*.antispam.mailspamprotection.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
14 s
mx30.antispam.mailspamprotection.com
34.111.121.216
 30
supported
*.antispam.mailspamprotection.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
14 s

Outgoing Mails

We have not received any emails from a @thebletchley.co.uk address so far. Test mail delivery

Certificates

First seen at:

CN=*.antispam.mailspamprotection.com

Certificate chain
Subject
Common Name (CN)
  • *.antispam.mailspamprotection.com
Alternative Names
  • *.antispam.mailspamprotection.com
  • antispam.mailspamprotection.com
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • GlobalSign GCC R6 AlphaSSL CA 2025
validity period
Not valid before
2025-11-11
Not valid after
2026-12-13
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
3F:64:F1:5F:16:1A:40:64:2E:9A:7F:60:35:9A:7B:65:D3:F0:D8:CC:B2:23:EE:97:1E:56:00:F7:ED:23:98:5E
SHA1
6C:76:A1:D7:A0:54:AA:61:C1:2D:AC:4B:F3:81:36:FF:A3:2E:69:ED
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr6alphasslca2025.crt
  • OCSP - URI:http://ocsp.globalsign.com/gsgccr6alphasslca2025
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.4146.10.1.3
  • CPS: https://www.globalsign.com/repository/
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/gsgccr6alphasslca2025.crl
authorityKeyIdentifier
  • keyid:C5:B4:93:8F:6F:2B:DC:1E:48:BF:B7:10:30:85:CE:D1:B2:BB:48:2D
subjectKeyIdentifier
  • F4:04:5E:92:F2:4B:9D:01:7E:63:67:07:74:89:82:A9:15:E9:78:91
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
  • 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
  • Timestamp : Nov 11 14:17:06.798 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:1E:B7:4F:A7:FA:51:B4:97:03:2C:76:D4:
  • 89:85:CA:15:BA:BB:83:FF:AE:72:01:AC:37:4C:8D:A6:
  • D7:8C:4F:81:02:21:00:8F:0F:C0:B4:9A:38:E1:D9:C2:
  • 82:26:0A:28:E3:AD:BB:96:5A:A2:A2:38:67:08:57:96:
  • CD:47:DE:2B:35:4D:53
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11:
  • 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3
  • Timestamp : Nov 11 14:17:06.787 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:A0:BD:D1:D5:D7:6C:E5:B9:D4:FE:03:
  • 0F:ED:23:DF:5F:FA:06:AF:B5:7C:F0:A0:0A:F6:4D:67:
  • 8A:85:4D:C8:08:02:20:74:94:F1:69:56:73:E5:7B:2C:
  • 17:5B:A1:CF:08:A2:44:98:B7:8E:D8:60:CF:8C:25:0F:
  • BD:0C:90:9B:F9:ED:FF
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
  • C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
  • Timestamp : Nov 11 14:17:06.812 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:7F:81:4D:A4:D3:D7:D4:BF:2F:62:F0:09:
  • 41:43:A6:6B:BB:6F:FD:8E:0C:DD:40:0B:D4:4B:8F:12:
  • 19:FD:7E:A4:02:21:00:AD:D0:66:A9:A1:F6:37:3E:A2:
  • 2B:C4:AD:99:6E:15:FE:C2:A2:A2:22:9B:7E:40:C8:45:
  • ED:B8:6B:C4:5F:9C:D6