SSL-Tools

SSL check results of dacks.co.jp

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Discover if the mail servers for dacks.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

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Report created Mon, 04 Nov 2024 04:49:40 +0000

We can not guarantee a secure connection to the mailservers of dacks.co.jp!

Please contact the operator of dacks.co.jp and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/dacks.co.jp

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.dacks.co.jp
125.206.41.128
 10
supported
dacks-cl013.dacks.co.jp
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
14 s
mail2.dacks.co.jp
211.8.18.113
Results incomplete
30 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 @dacks.co.jp address so far. Test mail delivery

Certificates

First seen at:

emailAddress=root@dacks-cl013.dacks.co.jp,CN=dacks-cl013.dacks.co.jp,OU=SomeOrganizationalUnit,O=SomeOrganization,L=SomeCity,ST=SomeState,C=--

Certificate chain
  • dacks-cl013.dacks.co.jp (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Expired
    • Unknown Authority
Subject
Country (C)
  • --
State (ST)
  • SomeState
Locality (L)
  • SomeCity
Organization (O)
  • SomeOrganization
Organizational Unit (OU)
  • SomeOrganizationalUnit
Common Name (CN)
  • dacks-cl013.dacks.co.jp
Email
  • root@dacks-cl013.dacks.co.jp
Issuer

Certificate is self-signed.

validity period
Not valid before
2022-04-18
Not valid after
2023-04-18
Fingerprints
SHA256
6A:E3:D0:A5:D5:6C:04:0E:B6:28:D2:36:0E:17:E2:A0:12:71:98:18:F7:F7:E0:23:47:DA:0E:2C:FD:89:D0:55
SHA1
26:73:4F:52:CA:41:15:BA:6A:3E:B2:06:89:69:9B:2D:1B:F0:2B:B3
X509v3 extensions
subjectKeyIdentifier
  • BA:78:3A:5B:F3:1D:7A:C4:6F:40:C8:22:34:BC:8C:5A:A5:A2:5F:DA
authorityKeyIdentifier
  • keyid:BA:78:3A:5B:F3:1D:7A:C4:6F:40:C8:22:34:BC:8C:5A:A5:A2:5F:DA