SSL-Tools

SSL check results of jackstr.fr

NEW You can also bulk check multiple servers.

Discover if the mail servers for jackstr.fr 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, 06 Dec 2020 13:43:44 +0000

The mailservers of jackstr.fr can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @jackstr.fr addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mailhost.jackstr.fr
178.33.234.143
 10
supported
mailhost.jackstr.fr
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

We have received emails from these servers with @jackstr.fr sender addresses. Test mail delivery

Host TLS Version & Cipher
jackstr.fr (178.33.234.143)
TLSv1.3 TLS_AES_256_GCM_SHA384

Certificates

First seen at:

CN=mailhost.jackstr.fr

Certificate chain
Subject
Common Name (CN)
  • mailhost.jackstr.fr
Alternative Names
  • mailhost.jackstr.fr
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-10-15
Not valid after
2021-01-13
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B6:9B:E3:D7:9F:29:89:95:12:C1:22:57:03:E4:E0:D1:FD:76:97:46:84:24:8E:96:5D:DE:63:4C:6C:1D:37:39
SHA1
BD:21:62:19:D8:AF:51:9D:11:72:46:EB:4B:49:65:25:4F:F0:20:BF
X509v3 extensions
subjectKeyIdentifier
  • 85:4C:A6:38:C5:FC:BF:B2:02:CF:0B:F6:40:C3:A8:BF:6C:66:82:81
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:20:BC:1E:8E:D5:8D:6C:88:73:1F:82:8B:22:2C:0D:
  • D1:DA:4D:5E:6C:4F:94:3D:61:DB:4E:2F:58:4D:A2:C2
  • Timestamp : Oct 15 16:36:25.347 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:6B:98:34:FC:37:60:1E:CB:C3:CF:87:4D:
  • C6:31:37:D8:85:DD:DA:26:44:EC:C8:43:89:01:19:07:
  • 31:50:78:E5:02:20:07:92:FC:C7:9E:AC:E4:60:CB:4B:
  • 50:DD:C8:FD:62:5A:76:76:16:F5:65:25:72:16:CC:7A:
  • DA:63:E3:F8:A5:E2
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 7D:3E:F2:F8:8F:FF:88:55:68:24:C2:C0:CA:9E:52:89:
  • 79:2B:C5:0E:78:09:7F:2E:6A:97:68:99:7E:22:F0:D7
  • Timestamp : Oct 15 16:36:25.390 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:50:68:16:B0:9B:A3:C9:A2:66:63:DB:D0:
  • 69:B5:A6:85:38:9C:30:2A:F7:DC:E1:7B:2B:11:76:30:
  • 1B:56:70:97:02:21:00:92:B8:67:EA:C2:03:05:F7:A6:
  • 2B:4B:71:47:BE:9B:6F:C9:63:BA:F6:81:5F:78:ED:71:
  • 5D:6B:1C:F0:B9:04:B9