SSL check results of jackstr.fr

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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

Report created Mon, 25 May 2020 10:38:31 +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
2020-04-17
Not valid after
2020-07-16
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
9D:FA:5A:6B:85:8B:53:DC:84:F6:EA:61:8A:70:53:74:61:48:8E:1B:71:8E:3D:B9:25:F9:64:7B:00:70:85:6D
SHA1
98:C1:7F:17:6D:C9:A0:ED:19:44:4A:49:DB:5A:EF:24:4E:C9:51:B0
X509v3 extensions
subjectKeyIdentifier
  • 39:C8:A2:A1:46:45:36:7F:43:CE:AE:17:EC:52:A4:63:5B:13:18:A7
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 : F0:95:A4:59:F2:00:D1:82:40:10:2D:2F:93:88:8E:AD:
  • 4B:FE:1D:47:E3:99:E1:D0:34:A6:B0:A8:AA:8E:B2:73
  • Timestamp : Apr 17 17:14:42.176 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:13:A5:DD:B0:D3:AA:8C:0B:D6:BC:51:A7:
  • E8:3D:91:FB:D9:59:A6:D5:F0:78:35:44:69:16:32:AE:
  • 4A:E8:BE:AF:02:21:00:9F:28:2F:4D:DD:FB:3F:04:CA:
  • B0:13:F0:7A:69:49:63:E7:EA:D4:6C:1E:7E:54:DF:A5:
  • CC:CE:07:45:05:52:AE
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Apr 17 17:14:42.221 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D2:50:60:13:F0:F4:DD:63:43:6F:C2:
  • 24:48:CE:B1:94:F6:0A:7E:16:82:6C:90:E2:D5:A6:01:
  • D1:13:E7:69:41:02:20:19:75:C5:15:43:88:26:58:59:
  • 31:FF:2D:00:CE:AE:77:B1:B8:84:36:E0:A2:B6:75:9B:
  • 05:1A:BD:14:C1:5D:EB