SSL-Tools

SSL check results of 8town.co.jp

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Discover if the mail servers for 8town.co.jp 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 Thu, 28 Mar 2024 06:17:58 +0000

The mailservers of 8town.co.jp can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @8town.co.jp addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
chi0.mx.cloud-mail.jp
59.157.130.128
 10
supported
*.mx.cloud-mail.jp
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
25 s
chi0.mx2.cloud-mail.jp
202.216.228.63
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

We have not received any emails from a @8town.co.jp address so far. Test mail delivery

Certificates

First seen at:

CN=*.mx.cloud-mail.jp

Certificate chain
Subject
Common Name (CN)
  • *.mx.cloud-mail.jp
Alternative Names
  • *.mx.cloud-mail.jp
  • mx.cloud-mail.jp
Issuer
Country (C)
  • JP
Organization (O)
  • Japan Registry Services Co., Ltd.
Common Name (CN)
  • JPRS Domain Validation Authority - G4
validity period
Not valid before
2023-12-01
Not valid after
2024-12-31
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
EB:8D:69:75:14:60:5A:AD:C9:A6:52:59:0E:EE:7F:C5:2A:60:A5:F0:30:38:01:03:DF:A5:0B:DE:69:45:27:3E
SHA1
85:08:71:83:58:97:8A:C9:B7:E6:F2:74:86:30:9F:2A:09:65:46:B4
X509v3 extensions
authorityKeyIdentifier
  • keyid:7C:24:CE:0D:A4:38:2D:C7:B3:63:5E:A7:78:7A:8D:1D:4C:2E:C7:15
authorityInfoAccess
  • CA Issuers - URI:http://repo.pubcert.jprs.jp/sppca/jprs/dvca_g4/JPRS_DVCA_G4_DER.cer
  • OCSP - URI:http://dv.g4.ocsp.pubcert.jprs.jp
certificatePolicies
  • Policy: 1.3.6.1.4.1.53827.1.1.4
  • CPS: http://jprs.jp/pubcert/info/repository/
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://repo.pubcert.jprs.jp/sppca/jprs/dvca_g4/fullcrl.crl
subjectKeyIdentifier
  • 0F:29:32:04:BD:2C:52:44:15:EE:9B:74:03:62:3C:A5:77:BC:B1:A7
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Dec 1 05:25:24.074 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E9:1E:20:84:E5:DD:98:16:A3:4C:A7:
  • 9B:98:96:8E:F3:35:A1:D7:6B:0C:C2:6E:20:DD:CC:B6:
  • 63:7D:AC:49:46:02:21:00:DB:23:88:50:16:0C:72:54:
  • F9:D4:A0:B6:28:54:17:9F:7A:BD:F1:83:74:0D:36:5E:
  • 59:0C:42:B3:95:84:84:42
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Dec 1 05:25:35.013 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:88:E7:C1:E0:AE:D3:3E:74:AF:8A:50:
  • 5E:68:39:E3:1F:06:98:A8:4F:6F:2B:E6:E9:60:0B:D1:
  • 9A:71:72:1A:ED:02:21:00:EF:16:D1:CE:CE:D6:C8:5A:
  • 0C:2A:0C:E9:66:52:BA:D2:82:EF:82:9D:3D:6D:AF:C2:
  • 6D:50:F0:4E:4C:CA:E9:32
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Dec 1 05:25:44.600 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:96:15:D4:80:DF:9A:D1:A0:9C:88:14:
  • B8:94:35:01:9A:0B:76:74:18:53:10:77:74:EE:F3:FA:
  • A4:E8:69:45:EE:02:20:15:A7:83:FA:04:E9:EE:41:E6:
  • 3B:C4:7D:1F:AC:CF:3B:3C:8A:05:3F:16:A0:FA:4E:2D:
  • F6:70:78:27:65:67:51
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
  • 91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
  • Timestamp : Dec 1 05:25:49.312 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:27:F0:51:C6:A7:D3:CF:ED:97:B0:D1:8D:
  • F8:A0:61:43:1B:37:08:C7:AE:C5:FD:81:E2:7E:DE:FA:
  • E9:73:EF:8D:02:21:00:9F:BA:F3:C7:D1:D9:B7:22:02:
  • 7B:6A:BA:B7:D8:9F:3C:FD:AA:B9:00:16:8F:9F:DA:AB:
  • A8:3B:1E:64:F0:D5:50