SSL check results of paul2k.de

NEW You can also bulk check multiple servers.

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 Fri, 27 Aug 2021 07:47:23 +0000

The mailservers of paul2k.de can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.paul2k.de
49.12.7.51
10
supported
mail.f1nalboss.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.f1nalboss.de

Certificate chain
  • mail.f1nalboss.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch

      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

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

Subject
Common Name (CN)
  • mail.f1nalboss.de
Alternative Names
  • imap.f1nalboss.de
  • mail.f1nalboss.de
  • pop3.f1nalboss.de
  • smtp.f1nalboss.de
  • spam.f1nalboss.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-07-22
Not valid after
2021-10-20
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
60:7E:31:D6:CA:B1:2F:2A:A3:0B:7C:B8:9E:B9:38:03:95:6E:20:D5:18:BC:68:8C:53:33:88:A8:89:33:8A:D8
SHA1
F3:F6:E8:6E:8E:5D:37:46:AB:11:1B:72:02:BA:E3:EC:01:16:F9:2F
X509v3 extensions
subjectKeyIdentifier
  • 6E:45:5D:FB:C4:AD:B3:4B:7B:A0:9B:64:7F:B2:3D:F2:8C:29:98:E6
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 : 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 22 19:51:19.381 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:91:00:D4:BE:53:F0:1C:AF:DF:69:85:
  • 72:7E:CD:95:D2:33:4F:32:B4:0B:B8:08:B8:90:09:16:
  • 78:F7:42:E8:47:02:20:47:E2:B7:A1:C7:FC:2B:26:02:
  • 72:FF:09:A6:DD:DA:61:B0:F7:69:81:7A:DB:31:09:78:
  • E7:26:FB:EE:45:13:E3
  • 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 22 19:51:19.409 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:B0:9D:14:D9:DE:37:32:7E:23:FD:04:
  • 1F:2F:1D:BF:67:6D:AC:2E:D8:BA:6D:02:9D:78:7E:1E:
  • 7E:89:88:52:1B:02:21:00:FE:7C:62:6F:AC:A6:5C:E8:
  • ED:E7:DE:66:BC:94:12:6F:F9:50:A7:37:11:5C:47:1F:
  • B3:71:7F:76:38:94:3F:D1