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, 27 Mar 2026 14:37:53 +0000

No connection to the mailservers of mail.computing.co.cr could be established.

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
Results incomplete
-
supported
mail.computing.co.cr
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mail.computing.co.cr
2a01:4ff:f0:da2d::
Results incomplete
-
supported
mail.computing.co.cr
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 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
Subject
Common Name (CN)
  • mail.computing.co.cr
Alternative Names
  • mail.computing.co.cr
Issuer
Country (C)
  • AT
Organization (O)
  • ZeroSSL
Common Name (CN)
  • ZeroSSL RSA Domain Secure Site CA
validity period
Not valid before
2025-12-26
Not valid after
2026-03-26
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
7E:BE:2D:BF:7D:04:F0:03:D3:3F:58:48:9F:B5:E2:47:6A:65:F4:26:74:65:CD:47:BF:18:B1:3F:48:8A:CA:A6
SHA1
E2:B2:04:4D:71:FC:BA:2B:D4:AA:D2:BC:5E:B0:AA:B7:5B:D1:B0:99
X509v3 extensions
authorityKeyIdentifier
  • keyid:C8:D9:78:68:A2:D9:19:68:D5:3D:72:DE:5F:0A:3E:DC:B5:86:86:A6
subjectKeyIdentifier
  • FF:BA:D3:F8:8F:6B:6A:0B:03:83:D1:48:DC:54:67:AF:63:82:6F:C2
certificatePolicies
  • Policy: 1.3.6.1.4.1.6449.1.2.2.78
  • CPS: https://sectigo.com/CPS
  • Policy: 2.23.140.1.2.1
authorityInfoAccess
  • CA Issuers - URI:http://zerossl.crt.sectigo.com/ZeroSSLRSADomainSecureSiteCA.crt
  • OCSP - URI:http://zerossl.ocsp.sectigo.com
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0E:57:94:BC:F3:AE:A9:3E:33:1B:2C:99:07:B3:F7:90:
  • DF:9B:C2:3D:71:32:25:DD:21:A9:25:AC:61:C5:4E:21
  • Timestamp : Dec 26 17:17:57.460 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:43:BF:35:A8:E3:80:AA:9E:2D:92:13:CE:
  • 0D:57:27:8B:E8:40:49:A3:80:69:B2:E7:09:ED:55:7D:
  • 26:D6:2D:6C:02:21:00:E7:67:23:0D:DB:8F:63:6D:E1:
  • F6:9D:DF:28:D4:62:4E:75:9F:D7:8C:56:6B:77:79:74:
  • 96:16:6C:B9:28:49:94
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D1:6E:A9:A5:68:07:7E:66:35:A0:3F:37:A5:DD:BC:03:
  • A5:3C:41:12:14:D4:88:18:F5:E9:31:B3:23:CB:95:04
  • Timestamp : Dec 26 17:17:57.654 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:47:B8:BD:18:39:AC:99:E0:99:44:3F:A6:
  • 2D:31:55:54:C3:51:19:8B:8E:E6:59:03:75:D7:B2:E1:
  • 43:29:4C:C3:02:20:18:DE:92:78:BF:20:EB:EC:66:75:
  • B2:3E:A9:03:E4:C2:01:B6:C2:83:DF:05:5F:54:16:5E:
  • E5:B3:54:AB:F1:D5