SSL check results of plibs.de

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Discover if the mail servers for plibs.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 Tue, 23 Feb 2021 12:29:24 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.plibs.de
37.120.176.12
10
supported
mail.plibs.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.plibs.de

Certificate chain
  • mail.plibs.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption

      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • DST Root CA X3 (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha1WithRSAEncryption

Subject
Common Name (CN)
  • mail.plibs.de
Alternative Names
  • largefiles.plibs.de
  • mail.plibs.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-02-23
Not valid after
2021-05-24
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
E9:29:AA:5F:53:C6:9A:54:BE:EF:89:14:65:06:CF:90:5E:59:C7:01:0E:5F:AE:33:48:32:F3:46:75:17:B8:8C
SHA1
80:29:B5:1E:9D:DD:6A:64:92:EF:82:D9:C9:C8:97:76:82:B9:FD:34
X509v3 extensions
subjectKeyIdentifier
  • D6:46:B6:52:BA:CD:30:A7:B2:79:A8:17:CD:98:43:18:F5:EA:A9:70
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 : Feb 23 10:46:27.770 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:04:EE:AF:B9:BB:B8:DA:B8:EA:0F:A2:80:
  • 5E:2A:81:D3:CE:7C:59:50:C5:C6:5F:0A:65:F4:76:3D:
  • 24:43:3D:A5:02:20:42:AD:31:E5:48:62:86:69:71:D7:
  • 84:43:CF:57:F5:B9:D1:22:FE:AD:83:A0:44:CF:2E:04:
  • 2B:E1:21:36:65:9B
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
  • E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
  • Timestamp : Feb 23 10:46:27.762 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E8:49:33:06:3A:38:61:0E:50:1F:29:
  • 1C:9E:88:42:E8:EF:E3:D1:CA:85:C6:09:E8:CD:06:13:
  • 32:4A:2D:B1:1C:02:21:00:DD:CF:2D:A9:3E:5A:29:E3:
  • 40:7B:69:F9:D6:C1:09:10:AC:3C:65:14:91:C0:09:B3:
  • E6:70:9B:01:63:7A:74:6F

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.plibs.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid