SSL-Tools

SSL check results of kuijpers.com

NEW You can also bulk check multiple servers.

Discover if the mail servers for kuijpers.com 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, 27 Jan 2021 11:33:26 +0000

We can not guarantee a secure connection to the mailservers of kuijpers.com!

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

/mailservers/kuijpers.com

Servers

Incoming Mails

These servers are responsible for incoming mails to @kuijpers.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.kuijpers.com
5.57.254.4
 5
supported
mail.kuijpers.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
12 s
mail.kuijpers.com
5.57.254.4
 10
supported
mail.kuijpers.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
12 s
mail-filter.eqdc.nl
5.206.215.194
Results incomplete
20
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mail-filter.eqdc.nl
91.189.231.74
Results incomplete
20
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mf1.eqdc.nl
91.189.231.74
Results incomplete
25
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

We have not received any emails from a @kuijpers.com address so far. Test mail delivery

Certificates

First seen at:

CN=mail.kuijpers.com

Certificate chain
  • mail.kuijpers.com
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Unknown Authority
      Trust Provider B.V. TLS RSA CA G1
Subject
Common Name (CN)
  • mail.kuijpers.com
Alternative Names
  • mail.kuijpers.com
Issuer
Country (C)
  • NL
Organization (O)
  • Trust Provider B.V.
Organizational Unit (OU)
  • Domain Validated SSL
Common Name (CN)
  • Trust Provider B.V. TLS RSA CA G1
validity period
Not valid before
2021-01-27
Not valid after
2022-01-26
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
9E:56:40:25:B7:EB:50:66:DF:4A:C9:10:22:B9:8A:26:BF:20:E0:99:D4:EF:75:FF:C8:5C:23:4C:59:3C:03:8F
SHA1
39:86:53:2F:82:05:BC:D3:78:D7:3A:92:0C:AF:BF:25:D8:AA:3F:9C
X509v3 extensions
authorityKeyIdentifier
  • keyid:F5:56:22:1F:D9:BF:6B:59:24:52:B0:E1:6A:CD:C0:E1:57:67:E9:E8
subjectKeyIdentifier
  • 8A:C4:6B:E0:6C:D0:52:42:1D:51:17:1F:BC:82:BB:6E:6F:21:44:75
crlDistributionPoints
  • Full Name:
  • URI:http://cdpd.digitalcertvalidation.com/TrustProviderBVTLSRSACAG1.crl
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • CPS: http://www.digicert.com/CPS
authorityInfoAccess
  • OCSP - URI:http://statusd.digitalcertvalidation.com
  • CA Issuers - URI:http://cacerts.digitalcertvalidation.com/TrustProviderBVTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 29:79:BE:F0:9E:39:39:21:F0:56:73:9F:63:A5:77:E5:
  • BE:57:7D:9C:60:0A:F8:F9:4D:5D:26:5C:25:5D:C7:84
  • Timestamp : Jan 27 09:37:08.912 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:99:C4:AA:85:F8:88:12:D9:85:BF:E4:
  • C9:D4:83:EE:D2:B0:C8:42:EA:98:78:41:C6:A7:3F:D6:
  • 92:7C:E7:1F:D5:02:21:00:8F:3A:53:A0:50:F4:75:BD:
  • EB:D6:89:2B:B6:99:4A:1A:75:F9:8A:D3:40:00:F0:AF:
  • FD:33:F0:9F:E3:79:3B:E7
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 22:45:45:07:59:55:24:56:96:3F:A1:2F:F1:F7:6D:86:
  • E0:23:26:63:AD:C0:4B:7F:5D:C6:83:5C:6E:E2:0F:02
  • Timestamp : Jan 27 09:37:08.978 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:65:85:05:5A:D2:BD:72:BA:FC:88:40:F9:
  • 27:55:CE:CE:99:3F:9A:D4:A3:5A:A2:2C:03:73:95:84:
  • 84:44:1E:F0:02:20:3D:7E:21:ED:63:68:B8:FA:32:FC:
  • 42:54:1A:36:99:26:5C:0E:23:D9:07:E9:3B:3F:9B:9C:
  • C9:71:13:4B:65:20