SSL-Tools

SSL check results of ysera-networks.de

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Discover if the mail servers for ysera-networks.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 Sat, 05 Jul 2025 07:38:07 +0000

The mailservers of ysera-networks.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @ysera-networks.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.ysera-networks.de
23.88.64.197
 10
supported
mail.ysera-networks.de
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
9 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.ysera-networks.de

Certificate chain
  • mail.ysera-networks.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.ysera-networks.de
Alternative Names
  • mail.ysera-networks.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-07-04
Not valid after
2025-10-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
70:1D:A9:AB:68:A6:B8:A8:E1:C5:44:00:C6:3C:18:06:DD:41:83:91:D6:F6:D4:0E:BA:0D:F5:4E:8A:8B:38:B3
SHA1
21:3D:00:0F:C5:4F:23:F4:09:9A:FF:C2:86:96:DD:4A:D2:5D:47:A2
X509v3 extensions
subjectKeyIdentifier
  • AB:B5:64:0F:C9:36:FA:AD:C7:10:04:F1:9D:0B:2B:F4:8C:A0:D4:E1
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r10.c.lencr.org/27.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0D:E1:F2:30:2B:D3:0D:C1:40:62:12:09:EA:55:2E:FC:
  • 47:74:7C:B1:D7:E9:30:EF:0E:42:1E:B4:7E:4E:AA:34
  • Timestamp : Jul 4 19:06:06.810 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:A2:F5:D6:FA:B5:5A:80:42:70:19:8B:
  • E0:C2:F7:EE:63:E1:CB:00:93:AC:BB:0E:EE:7E:9B:DF:
  • DE:DF:65:5C:6A:02:20:0B:78:90:A0:37:BA:1D:D4:29:
  • 8F:4C:0D:18:E5:DF:50:7F:DE:FB:2D:BC:E2:20:50:63:
  • CA:1B:EE:89:6B:F1:BA
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Jul 4 19:06:06.826 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:9F:2C:DF:AE:AB:8B:0A:45:3A:14:CF:
  • 4B:8C:71:5E:4D:25:6B:92:CC:0B:C5:58:67:3C:DF:A3:
  • 04:E7:A7:C1:B0:02:21:00:9C:48:9B:57:79:BE:6A:1E:
  • 3D:83:19:38:C6:AD:CB:13:14:8B:77:E1:26:96:DC:B7:
  • C2:5F:FA:83:D0:4F:75:71

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.ysera-networks.de
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
error
Debug
valid