SSL-Tools

SSL check results of mail.computing.co.cr

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Discover if the mail servers for mail.computing.co.cr 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 Fri, 10 Jan 2025 18:08:16 +0000

The mailservers of mail.computing.co.cr can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.computing.co.cr addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.computing.co.cr
5.161.194.20
 -
supported
mail.computing.co.cr
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
7 s

Outgoing Mails

We have not received any emails from a @mail.computing.co.cr address so far. Test mail delivery

Certificates

First seen at:

CN=mail.computing.co.cr

Certificate chain
  • mail.computing.co.cr
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E6
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.computing.co.cr
Alternative Names
  • mail.computing.co.cr
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E6
validity period
Not valid before
2025-01-09
Not valid after
2025-04-09
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C9:C4:C5:9F:3E:CC:D5:D1:F7:48:35:4D:32:BB:BB:23:3C:D2:2E:B9:DA:BE:90:3E:8D:12:04:FD:24:AC:5B:CF
SHA1
02:FF:8B:DA:67:47:AF:CA:E5:14:CA:08:6F:93:0F:93:70:23:E7:94
X509v3 extensions
subjectKeyIdentifier
  • E7:93:8A:C7:55:6C:5F:93:51:39:B9:CA:EB:D8:E8:67:A9:F5:E9:48
authorityKeyIdentifier
  • keyid:93:27:46:98:03:A9:51:68:8E:98:D6:C4:42:48:DB:23:BF:58:94:D2
authorityInfoAccess
  • OCSP - URI:http://e6.o.lencr.org
  • CA Issuers - URI:http://e6.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1:
  • D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50
  • Timestamp : Jan 9 05:49:41.436 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:AB:8D:02:D8:AF:12:4B:44:7E:E6:4D:
  • E0:8B:E6:BD:70:22:2F:66:28:DF:16:53:3D:AB:58:FE:
  • E1:D3:D1:46:1C:02:21:00:AD:7F:CE:B3:CB:DD:27:55:
  • 2D:FC:64:0B:AF:8A:1F:79:FA:E0:EE:46:21:4E:E8:21:
  • CC:39:46:13:BF:A6:DE:37
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E0:92:B3:FC:0C:1D:C8:E7:68:36:1F:DE:61:B9:96:4D:
  • 0A:52:78:19:8A:72:D6:72:C4:B0:4D:A5:6D:6F:54:04
  • Timestamp : Jan 9 05:49:41.455 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:FC:96:1B:F3:3D:A3:95:3A:42:F2:C4:
  • E2:D8:16:75:81:D5:C6:73:1B:39:CF:D8:C8:FE:1A:C0:
  • EF:8B:71:90:13:02:20:30:FF:F0:6A:84:BE:14:A4:FE:
  • 6E:6F:2F:5F:95:6D:86:EE:9C:91:A3:81:F8:13:A2:56:
  • F8:15:0B:82:42:78:4C