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SSL check results of e-contract.mizuhobank.co.jp

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Discover if the mail servers for e-contract.mizuhobank.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 Wed, 09 Jul 2025 05:27:06 +0000

The mailservers of e-contract.mizuhobank.co.jp can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @e-contract.mizuhobank.co.jp addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx-mzb.dpost-k.jp
157.101.255.34
 10
supported
*.dpost-k.jp
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
12 s

Outgoing Mails

We have not received any emails from a @e-contract.mizuhobank.co.jp address so far. Test mail delivery

Certificates

First seen at:

CN=*.dpost-k.jp,O=Dai Nippon Printing Co.\, Ltd.,L=SHINJUKU-KU,ST=Tokyo,C=JP

Certificate chain
Subject
Country (C)
  • JP
State (ST)
  • Tokyo
Locality (L)
  • SHINJUKU-KU
Organization (O)
  • Dai Nippon Printing Co., Ltd.
Common Name (CN)
  • *.dpost-k.jp
Alternative Names
  • *.dpost-k.jp
  • dpost-k.jp
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • GeoTrust TLS RSA CA G1
validity period
Not valid before
2025-03-06
Not valid after
2026-04-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
EC:77:79:E1:FB:0E:92:F9:D1:98:E5:D2:32:75:D1:7D:55:1C:14:5A:B1:E0:CD:34:34:AE:A6:28:F9:B7:42:5B
SHA1
49:57:3E:2E:7A:4A:B6:99:24:07:A1:99:29:9D:8F:94:56:31:3E:FC
X509v3 extensions
authorityKeyIdentifier
  • keyid:94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
  • F4:40:6C:69:D7:6A:F0:C1:AB:10:25:74:21:10:47:5B:7D:86:91:BE
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
  • OCSP - URI:http://status.geotrust.com
  • CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0E:57:94:BC:F3:AE:A9:3E:33:1B:2C:99:07:B3:F7:90:
  • DF:9B:C2:3D:71:32:25:DD:21:A9:25:AC:61:C5:4E:21
  • Timestamp : Mar 6 01:30:48.590 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:EC:85:4E:B1:FD:68:42:33:CC:B2:49:
  • ED:3F:91:BC:B0:B3:06:FD:AD:1F:60:54:94:DD:B0:C6:
  • AC:2F:DE:7E:DE:02:20:6E:46:01:DA:C5:8B:42:B4:89:
  • FE:5E:3E:1F:82:8C:43:4A:6B:6C:41:BA:68:2C:41:F8:
  • 20:26:96:49:98:D6:F6
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 64:11:C4:6C:A4:12:EC:A7:89:1C:A2:02:2E:00:BC:AB:
  • 4F:28:07:D4:1E:35:27:AB:EA:FE:D5:03:C9:7D:CD:F0
  • Timestamp : Mar 6 01:30:48.655 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:92:33:CF:2F:76:BE:9F:FA:FA:58:62:
  • 38:98:1E:0D:32:0A:39:F3:D0:A2:15:91:E9:D9:9F:96:
  • A1:F5:2B:4E:E3:02:20:39:13:15:6E:40:97:15:B7:05:
  • D8:23:B2:0F:C7:2F:8B:AE:A8:5B:D7:68:FC:90:C9:E7:
  • 09:4E:47:81:C8:7C:F9
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 49:9C:9B:69:DE:1D:7C:EC:FC:36:DE:CD:87:64:A6:B8:
  • 5B:AF:0A:87:80:19:D1:55:52:FB:E9:EB:29:DD:F8:C3
  • Timestamp : Mar 6 01:30:48.678 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:40:DA:2D:E4:06:08:83:58:CB:3C:0E:DF:
  • 18:98:1F:52:57:08:9C:F1:7C:B2:5F:09:66:DF:8B:8C:
  • BF:34:36:8C:02:21:00:E0:5D:73:D0:02:B7:2F:46:60:
  • 8C:3F:D5:30:F0:E8:43:04:0B:40:E7:86:E3:9A:3F:A5:
  • 49:6E:62:FD:02:02:13