SSL-Tools

SSL check results of netzprisma.de

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Discover if the mail servers for netzprisma.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 Thu, 18 Apr 2024 15:51:25 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.netzprisma.de
78.46.91.138
 10
supported
mx1.netzprisma.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
22 s

Outgoing Mails

We have received emails from these servers with @netzprisma.de sender addresses. Test mail delivery

Host TLS Version & Cipher
mout1.netzprisma.de (88.198.99.100)
TLSv1.3 TLS_AES_256_GCM_SHA384

Certificates

First seen at:

CN=mx1.netzprisma.de

Certificate chain
  • mx1.netzprisma.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)
  • mx1.netzprisma.de
Alternative Names
  • mx1.netzprisma.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-04-11
Not valid after
2024-07-10
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
9C:18:BA:21:3A:06:BF:43:1D:D0:E2:10:B1:17:3E:5D:E1:C5:0E:CB:A8:6A:ED:E4:7A:54:35:03:F1:D0:A5:6A
SHA1
F7:BC:47:9E:33:1C:15:C7:C8:DA:E0:20:C4:7B:D6:6B:54:E2:AD:7B
X509v3 extensions
subjectKeyIdentifier
  • A9:70:0E:EC:B9:58:21:96:F2:E5:76:70:CE:0F:CD:05:1B:BD:C6:FB
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
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 3F:17:4B:4F:D7:22:47:58:94:1D:65:1C:84:BE:0D:12:
  • ED:90:37:7F:1F:85:6A:EB:C1:BF:28:85:EC:F8:64:6E
  • Timestamp : Apr 11 02:50:12.739 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:0E:6E:48:4E:E3:63:F3:1B:7E:1F:48:6D:
  • F7:91:71:5B:D0:8E:83:B0:6A:2C:DB:5E:FF:AD:6B:7E:
  • E7:08:0E:89:02:20:78:79:41:7F:54:08:FE:C9:47:C9:
  • 90:59:BA:0C:21:AF:F8:B2:5E:53:B9:B4:6F:0C:EC:23:
  • 20:A9:7B:DF:72:1B
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DF:E1:56:EB:AA:05:AF:B5:9C:0F:86:71:8D:A8:C0:32:
  • 4E:AE:56:D9:6E:A7:F5:A5:6A:01:D1:C1:3B:BE:52:5C
  • Timestamp : Apr 11 02:50:12.927 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:EF:1D:96:2D:1F:1E:54:FB:2D:EB:E8:
  • 6E:AE:E7:0F:11:9F:37:C6:3D:A2:F5:98:11:20:1E:D2:
  • D2:CB:88:D7:8B:02:20:0C:FE:C9:54:08:40:13:81:45:
  • 39:F0:E2:A6:7D:41:C4:54:C3:D9:6B:99:6F:40:36:73:
  • 97:8A:D7:7E:A3:87:57

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.mx1.netzprisma.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid