SSL-Tools

SSL check results of feel3.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for feel3.de 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 Wed, 05 Aug 2020 12:51:06 +0000

The mailservers of feel3.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @feel3.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.feel3.de
2a00:90c0:200::2eff:fea7:a052
 10
supported
*.feel3.de
DANE
errors
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
7 s
mail.feel3.de
185.2.0.2
 10
supported
*.feel3.de
DANE
errors
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s

Outgoing Mails

We have not received any emails from a @feel3.de address so far. Test mail delivery

Certificates

First seen at:

CN=*.feel3.de

Certificate chain
Subject
Common Name (CN)
  • *.feel3.de
Alternative Names
  • *.feel3.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-07-05
Not valid after
2020-10-03
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
7E:48:FD:D4:75:8A:43:98:4A:9B:B0:39:2A:E5:18:E9:9E:7A:28:8E:34:B3:E9:C3:EE:4B:49:27:E9:14:D1:CE
SHA1
AA:65:3E:94:BE:6D:F5:E4:0D:77:27:0B:4E:D0:CA:90:88:B3:E8:E4
X509v3 extensions
subjectKeyIdentifier
  • BF:77:0D:EF:76:7B:57:A3:B2:DA:52:36:FF:CF:18:9F:40:FE:3B:28
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 : E7:12:F2:B0:37:7E:1A:62:FB:8E:C9:0C:61:84:F1:EA:
  • 7B:37:CB:56:1D:11:26:5B:F3:E0:F3:4B:F2:41:54:6E
  • Timestamp : Jul 5 22:10:08.761 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:27:54:D8:1C:32:A7:96:31:42:56:4F:40:
  • 91:B8:A4:6C:E7:47:B5:D8:CE:D0:D4:45:4C:27:6E:CC:
  • F6:7E:2D:BB:02:20:4C:E5:11:49:7E:92:27:2C:50:24:
  • 48:51:21:D7:73:DE:CD:22:ED:AA:65:5C:91:5C:A9:E6:
  • E4:F5:A1:17:74:E0
  • 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 : Jul 5 22:10:08.808 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:C4:CA:99:67:C8:E6:87:48:BF:BE:D4:
  • 53:D9:39:BB:77:E2:CB:C6:4F:BB:25:92:E9:59:CF:2E:
  • 35:CD:FC:8F:89:02:21:00:E8:4E:39:EC:03:A6:19:02:
  • E8:84:8F:6D:D5:C7:4C:EA:AA:C4:E7:A7:78:38:FD:BB:
  • 0E:C2:4F:97:3D:2D:3F:D9

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.mail.feel3.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
error
Debug
—