SSL check results of jupiter.domaisy.de

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Discover if the mail servers for jupiter.domaisy.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 Mon, 13 Jul 2026 08:47:48 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
jupiter.domaisy.de
212.83.36.111
-
supported
jupiter.domaisy.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=jupiter.domaisy.de

Certificate chain
  • jupiter.domaisy.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption

      • R13
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

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

Subject
Common Name (CN)
  • jupiter.domaisy.de
Alternative Names
  • jupiter.domaisy.de
  • webmail.jupiter.domaisy.de
  • www.jupiter.domaisy.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R13
validity period
Not valid before
2026-05-16
Not valid after
2026-08-14
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
50:56:DD:FD:68:2A:C4:7C:9E:4B:A7:E4:99:96:94:1D:E3:C1:99:68:6F:59:4D:3F:0F:6D:7A:BD:B1:15:90:FD
SHA1
D7:04:83:FD:F0:7B:6C:D4:31:11:69:B8:AB:D0:08:90:26:36:53:83
X509v3 extensions
subjectKeyIdentifier
  • 9B:F9:2D:EA:45:6F:A4:E2:DD:28:A8:D2:F8:12:01:19:B1:D3:ED:C5
authorityKeyIdentifier
  • keyid:E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33
authorityInfoAccess
  • CA Issuers - URI:http://r13.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r13.c.lencr.org/23.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB:
  • B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14
  • Timestamp : May 16 04:51:28.080 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:58:70:68:EE:1B:FE:86:01:41:50:D3:B0:
  • 0C:68:DE:E5:40:76:ED:E1:32:CD:15:58:79:86:26:60:
  • 5A:37:AA:89:02:21:00:DC:A8:28:F8:DA:AE:56:21:4C:
  • E2:54:F3:CE:FA:9B:78:3B:A6:F1:B4:0E:BF:C9:CB:5A:
  • 88:79:3D:9A:A6:2B:D9
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86:
  • D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF
  • Timestamp : May 16 04:51:28.700 2026 GMT
  • Extensions: 00:00:05:00:13:45:60:D0
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:DE:10:08:4C:28:DA:C1:1A:36:7A:40:
  • 94:B8:A9:95:81:DA:95:1B:F6:89:65:BC:4E:10:19:47:
  • 6B:FB:B9:E2:E8:02:20:22:02:5B:42:24:38:CC:79:5D:
  • 3D:CE:22:2F:E2:12:4B:C6:BC:D3:A4:97:42:04:DC:2B:
  • C5:4B:52:FA:DE:A0:0D