SSL-Tools

SSL check results of gumx.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for gumx.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 Fri, 10 Jan 2025 19:29:42 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
7d24d77.online-server.cloud
2001:8d8:1800:85b8::1
 10
supported
7d24d77.online-server.cloud
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
7d24d77.online-server.cloud
217.160.237.231
 10
supported
7d24d77.online-server.cloud
DANE
missing
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 @gumx.de address so far. Test mail delivery

Certificates

First seen at:

CN=7d24d77.online-server.cloud

Certificate chain
  • 7d24d77.online-server.cloud
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • 7d24d77.online-server.cloud
Alternative Names
  • 7d24d77.online-server.cloud
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2024-12-10
Not valid after
2025-03-10
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
04:1A:F7:6F:CB:B2:A1:DF:53:E1:35:8E:4C:A0:E8:F2:68:D8:ED:7F:4E:79:24:41:DA:9E:D7:11:0C:FD:A6:91
SHA1
27:D9:0F:18:A8:C9:4A:3C:28:27:02:C2:46:59:F5:78:C1:AF:8D:35
X509v3 extensions
subjectKeyIdentifier
  • C9:56:A0:8B:3F:E3:E9:80:B7:1A:41:1D:22:29:79:17:15:33:EC:CE
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • OCSP - URI:http://r11.o.lencr.org
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Dec 10 11:56:37.676 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:A6:5D:5A:B3:2E:AE:C0:FF:32:7F:01:
  • 6B:11:94:D6:5E:51:70:AC:B6:FB:A1:62:31:6E:F1:61:
  • 8A:FB:0C:E9:12:02:20:32:EA:82:9F:C4:E5:60:E7:73:
  • 10:23:B8:9C:F0:1F:C9:3E:78:55:46:74:88:84:5B:B0:
  • CB:B2:EA:D0:68:60:9C
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 13:4A:DF:1A:B5:98:42:09:78:0C:6F:EF:4C:7A:91:A4:
  • 16:B7:23:49:CE:58:57:6A:DF:AE:DA:A7:C2:AB:E0:22
  • Timestamp : Dec 10 11:56:37.875 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:A6:FF:07:0A:96:6C:A9:B1:FE:87:DA:
  • 87:C2:2A:AD:B5:C7:31:97:0F:0D:3F:A8:3F:AA:E0:FD:
  • A5:F5:17:E7:33:02:20:03:3C:06:DD:D7:37:B5:77:DD:
  • 8B:46:57:2A:75:1E:59:69:2E:D8:12:FB:9E:93:E4:BA:
  • A9:FB:2B:B8:31:48:4E