SSL-Tools

SSL check results of go4copy.net

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Discover if the mail servers for go4copy.net 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 Mon, 15 Jun 2020 16:46:10 +0000

We can not guarantee a secure connection to the mailservers of go4copy.net!

Please contact the operator of go4copy.net and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/go4copy.net

Servers

Incoming Mails

These servers are responsible for incoming mails to @go4copy.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx-33.smcc.de
193.23.177.33
 10
supported
smcc.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
2 s
news-mx-01.smcc.de
130.117.188.100
Results incomplete
90 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

We have not received any emails from a @go4copy.net address so far. Test mail delivery

Certificates

First seen at:

CN=smcc.net

Certificate chain
  • smcc.net
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
Subject
Common Name (CN)
  • smcc.net
Alternative Names
  • *.smcc.net
  • smcc.net
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-04
Not valid after
2020-08-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
FB:27:80:C6:F0:CF:7C:7F:1E:44:09:16:C2:6C:94:81:E6:BF:52:4B:A1:2E:69:C9:F8:57:84:2C:F8:13:27:25
SHA1
44:9A:E5:E8:81:6E:26:6A:A4:B6:67:DF:4D:26:BA:33:DA:CF:C2:85
X509v3 extensions
subjectKeyIdentifier
  • 2C:57:74:B5:F5:0E:FD:39:14:15:08:7F:FC:91:9A:14:8C:4B:D8:EF
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 : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : May 4 11:59:45.300 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:DA:0A:CE:69:9B:E1:88:CB:74:71:C5:
  • D6:80:21:0A:E5:46:CE:A3:0C:00:98:B8:D3:77:3D:D6:
  • 20:45:C7:C1:2B:02:21:00:FA:2C:EF:0E:5A:EE:BA:A8:
  • 52:63:52:11:21:68:DE:2D:33:82:CA:85:96:60:CE:8D:
  • 14:53:99:30:A3:BD:54:CD
  • 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 : May 4 11:59:45.245 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E6:19:4F:43:51:B8:6E:59:C8:29:F4:
  • 92:89:CB:38:C0:19:53:77:D9:B9:E4:8C:A6:D6:F3:5D:
  • 9C:C0:79:1F:FE:02:20:3B:D8:8A:62:82:D8:99:16:42:
  • 6E:98:37:4B:08:82:E7:29:88:01:27:5E:59:AD:70:F8:
  • D0:90:CC:9A:5A:EB:B9