SSL-Tools

SSL check results of kvfg.info

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Discover if the mail servers for kvfg.info 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 Sun, 31 May 2020 19:45:59 +0000

The mailservers of kvfg.info can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @kvfg.info addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.kvfg.info
88.99.22.83
 10
supported
kvfg.info
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s
mail.kvfg.info
88.99.22.83
 20
supported
kvfg.info
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s

Outgoing Mails

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

Certificates

First seen at:

CN=kvfg.info

Certificate chain
Subject
Common Name (CN)
  • kvfg.info
Alternative Names
  • kvfg.info
  • kvfgmail.de
  • mail.kvfg.info
  • www.kvfg.info
  • www.kvfgmail.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-04-08
Not valid after
2020-07-07
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
95:72:55:BE:83:E0:CD:23:30:60:C0:B5:7B:8A:76:BB:0D:F8:F1:42:C6:D3:1C:65:E2:2C:BC:BC:05:16:7C:2D
SHA1
97:EB:3D:F4:0C:BA:C7:61:27:B7:DF:2C:A5:4C:20:EC:EC:C8:32:65
X509v3 extensions
subjectKeyIdentifier
  • 1F:A3:06:B5:67:E8:7D:DC:CF:03:85:BC:71:B1:74:7B:E9:D4:BE:AA
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 : 5E:A7:73:F9:DF:56:C0:E7:B5:36:48:7D:D0:49:E0:32:
  • 7A:91:9A:0C:84:A1:12:12:84:18:75:96:81:71:45:58
  • Timestamp : Apr 8 05:52:33.772 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:8A:3D:60:15:81:2F:CD:4E:31:EA:EA:
  • 3B:55:99:CB:DF:B6:5E:07:DB:09:8B:AC:B9:0C:3B:BD:
  • 87:90:71:C1:A0:02:21:00:CF:AA:9C:0E:5C:A8:77:71:
  • 51:C4:BD:FC:1E:A3:FF:6E:10:C8:81:EB:BE:EB:3E:78:
  • 23:48:83:A1:EE:9A:83:6A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : Apr 8 05:52:33.754 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:54:6F:F9:50:12:5B:B5:68:0C:1E:36:19:
  • FC:10:B3:48:21:3F:61:17:1B:68:E2:41:94:CD:42:B2:
  • 8B:E5:FB:2D:02:20:78:E5:B8:DF:74:C4:71:51:51:7D:
  • 0B:AF:CF:74:EA:88:02:9E:A6:6A:C4:42:F2:21:10:FE:
  • 78:B3:48:19:2C:0B