SSL-Tools

SSL check results of smtp.brennercom.net

NEW You can also bulk check multiple servers.

Discover if the mail servers for smtp.brennercom.net 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 Tue, 31 Oct 2023 12:59:58 +0000

The mailservers of smtp.brennercom.net can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @smtp.brennercom.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtp.brennercom.net
37.186.130.238
 -
supported
*.brennercom.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

We have not received any emails from a @smtp.brennercom.net address so far. Test mail delivery

Certificates

First seen at:

CN=*.brennercom.net

Certificate chain
Subject
Common Name (CN)
  • *.brennercom.net
Alternative Names
  • *.brennercom.net
  • brennercom.net
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • AlphaSSL CA - SHA256 - G4
validity period
Not valid before
2023-02-03
Not valid after
2024-03-06
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
3D:7F:29:2B:6A:51:00:C4:D3:99:A8:9E:98:05:05:A1:B7:72:A3:89:5A:79:83:F6:2A:9A:7A:61:EF:C9:92:2D
SHA1
72:BE:D3:08:9F:C7:A9:C2:66:9D:CF:11:8F:57:7C:3A:4C:4A:DA:80
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/alphasslcasha256g4.crt
  • OCSP - URI:http://ocsp.globalsign.com/alphasslcasha256g4
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.4146.10.1.3
  • CPS: https://www.globalsign.com/repository/
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/alphasslcasha256g4.crl
authorityKeyIdentifier
  • keyid:4F:CB:AC:A8:C2:EF:AB:DD:83:6F:6B:BF:CE:98:3D:5C:58:25:76:15
subjectKeyIdentifier
  • D1:BD:DF:2B:9C:56:DB:31:18:52:FA:57:77:EF:3A:C5:D9:7C:00:EB
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Feb 3 16:40:16.249 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:40:9A:45:DF:41:19:FA:8F:80:ED:AA:B6:
  • EB:BA:1C:46:8A:6F:E5:E4:92:49:33:8B:47:20:47:AD:
  • AB:83:D9:D1:02:21:00:F5:74:6B:8D:20:EF:AB:AF:86:
  • 8A:17:4F:17:79:FA:48:89:DB:46:B6:36:8B:70:AE:EB:
  • BE:47:1C:4A:D4:DF:DA
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Feb 3 16:40:16.193 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:3C:68:48:48:0C:AF:BD:62:60:82:56:6A:
  • 4C:22:ED:D6:74:1D:62:32:C2:DC:A2:4F:47:74:19:1C:
  • 2F:01:5B:4F:02:20:41:5F:40:6F:90:46:CE:D1:4D:43:
  • 6C:F1:DE:C1:93:BB:C4:CA:79:69:8C:85:52:2F:BB:61:
  • DB:CD:28:4E:93:70
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
  • 91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
  • Timestamp : Feb 3 16:40:16.113 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:09:8A:35:34:68:11:A9:7E:03:68:ED:76:
  • F9:36:26:C4:45:58:9B:D4:0B:B5:EB:55:4A:D5:F0:86:
  • 83:7F:9D:D0:02:20:58:2A:24:EE:61:6F:9F:0E:47:96:
  • 1B:C1:95:72:AA:7F:51:9E:30:B3:10:04:56:3F:2E:89:
  • 41:2A:9A:31:FE:8B