SSL-Tools

SSL check results of mrjf.com.br

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Discover if the mail servers for mrjf.com.br 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 Sat, 15 Jan 2022 02:59:15 +0000

The mailservers of mrjf.com.br can be reached through a secure connection.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mrjf.com.br
192.185.222.95
 0
supported
mrjf.com.br
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
41 s

Outgoing Mails

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

Certificates

First seen at:

CN=mrjf.com.br

Certificate chain
  • mrjf.com.br
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mrjf.com.br
Alternative Names
  • *.mrjf.com.br
  • mrjf.com.br
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-11-20
Not valid after
2022-02-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
6A:C8:4B:17:6A:79:BC:4F:97:D4:3C:71:CF:60:A2:F4:32:C1:1D:94:42:0E:5F:72:A2:EC:8E:F4:B1:05:52:29
SHA1
F3:46:D9:94:84:C7:11:F3:3E:93:E0:9A:EF:31:BB:F3:C7:65:22:3E
X509v3 extensions
subjectKeyIdentifier
  • DA:B9:2E:03:00:24:27:F9:4D:77:CA:B2:21:E2:29:33:94:18:6D:EF
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.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 : DF:A5:5E:AB:68:82:4F:1F:6C:AD:EE:B8:5F:4E:3E:5A:
  • EA:CD:A2:12:A4:6A:5E:8E:3B:12:C0:20:44:5C:2A:73
  • Timestamp : Nov 20 09:57:18.089 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:DC:D1:2F:23:49:5B:3B:19:6A:E5:54:
  • A7:CE:BB:CF:8D:25:AD:3D:46:F6:52:6B:00:33:F6:38:
  • 45:3B:13:F3:F1:02:21:00:FA:59:37:10:09:C0:A7:C2:
  • DF:F7:D9:50:2B:A4:48:D9:D5:99:0D:87:BD:CF:64:5D:
  • 54:BD:4F:63:A7:1A:F2:92
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 46:A5:55:EB:75:FA:91:20:30:B5:A2:89:69:F4:F3:7D:
  • 11:2C:41:74:BE:FD:49:B8:85:AB:F2:FC:70:FE:6D:47
  • Timestamp : Nov 20 09:57:18.133 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D6:F1:E2:C7:1C:2A:CB:25:4A:47:C2:
  • F2:9F:EC:48:A0:A0:AE:32:D9:6F:2B:6A:41:67:FB:8B:
  • 65:BB:EE:5F:9A:02:20:78:D3:63:1F:A4:03:1B:51:D4:
  • 4D:45:E0:1C:D6:9D:90:C5:41:3D:EF:E6:5E:6A:5C:AC:
  • C5:5D:DF:11:03:5B:84