SSL check results of paul2k.de

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Discover if the mail servers for paul2k.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

Report created Thu, 22 Jul 2021 01:08:24 +0000

The mailservers of paul2k.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @paul2k.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.paul2k.de
162.55.221.27
10
supported
mail.paul2k.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
2 s

Outgoing Mails

We have not received any emails from a @paul2k.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.paul2k.de

Certificate chain
  • mail.paul2k.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption

      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption

Subject
Common Name (CN)
  • mail.paul2k.de
Alternative Names
  • mail.paul2k.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-07-21
Not valid after
2021-10-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
67:E3:07:1A:E6:6A:C8:E6:B5:1F:56:DA:60:41:54:49:EF:13:D1:62:82:36:AA:1B:B8:A1:45:59:34:9C:14:8F
SHA1
35:96:7A:B0:FE:DF:07:A1:41:B9:6D:7E:53:27:7F:5D:53:FF:41:D6
X509v3 extensions
subjectKeyIdentifier
  • 4E:46:61:6E:1E:70:6F:E4:61:38:2E:B4:D4:A4:A2:4C:7C:DB:07:A0
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.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 : 7D:3E:F2:F8:8F:FF:88:55:68:24:C2:C0:CA:9E:52:89:
  • 79:2B:C5:0E:78:09:7F:2E:6A:97:68:99:7E:22:F0:D7
  • Timestamp : Jul 21 19:00:57.765 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:93:71:70:CE:78:F1:11:AD:47:A9:7E:
  • F6:83:11:1F:D3:EA:95:AE:CB:AC:70:4E:10:D2:79:B7:
  • 49:10:08:08:B4:02:21:00:BC:44:ED:A6:90:3B:06:75:
  • 38:EC:64:00:C2:76:E5:20:3F:6E:52:80:24:F2:36:BC:
  • D3:44:4B:F9:07:85:F0:ED
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 44:94:65:2E:B0:EE:CE:AF:C4:40:07:D8:A8:FE:28:C0:
  • DA:E6:82:BE:D8:CB:31:B5:3F:D3:33:96:B5:B6:81:A8
  • Timestamp : Jul 21 19:00:58.206 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:27:3B:70:19:F1:3C:7A:BB:1B:A9:71:F2:
  • 50:1A:C3:B3:DD:1C:B8:16:22:39:D3:07:58:50:69:87:
  • 53:C9:37:FE:02:21:00:EF:10:7C:5B:F1:EF:8C:4E:5D:
  • 6F:55:05:13:2B:BC:57:22:49:DF:43:0D:76:B1:BC:91:
  • E3:DD:47:81:07:D4:A0