SSL-Tools

SSL check results of blu4.de

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Discover if the mail servers for blu4.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, 17 Nov 2023 22:13:51 +0000

The mailservers of blu4.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @blu4.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx01.goneo.de
2001:1640:5::11:2
 10
supported
*.goneo.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
1 s
mx01.goneo.de
85.220.143.6
 10
supported
*.goneo.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
1 s
mx02.goneo.de
2001:1640:5::12:2
 10
supported
*.goneo.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
1 s
mx02.goneo.de
85.220.165.130
 10
supported
*.goneo.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • SSLv3
1 s

Outgoing Mails

We have received emails from these servers with @blu4.de sender addresses. Test mail delivery

Host TLS Version & Cipher
mout.kundenserver.de (212.227.126.187)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (212.227.126.134)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (212.227.126.131)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (217.72.192.74)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (212.227.17.24)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (212.227.126.135)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (212.227.126.130)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (212.227.17.10)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (212.227.126.133)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (212.227.17.13)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (217.72.192.73)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout.kundenserver.de (217.72.192.75)
TLSv1.3 TLS_AES_256_GCM_SHA384
mout-xforward.kundenserver.de (82.165.159.37)
TLSv1.3 TLS_AES_256_GCM_SHA384

Certificates

First seen at:

CN=*.goneo.de

Certificate chain
Subject
Common Name (CN)
  • *.goneo.de
Alternative Names
  • *.goneo.de
  • goneo.de
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • RapidSSL TLS RSA CA G1
validity period
Not valid before
2023-03-22
Not valid after
2024-04-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
1E:CE:F7:F1:5E:BA:4C:29:A0:D6:6D:1E:2D:ED:42:4C:17:14:5E:28:7A:6E:0A:86:C9:E5:26:9E:48:13:20:5D
SHA1
95:49:AE:E7:41:F9:0E:57:C9:95:2C:3E:B4:EE:A0:64:36:4D:8A:9D
X509v3 extensions
authorityKeyIdentifier
  • keyid:0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
  • 0D:73:6B:6C:85:35:1E:E0:E2:4C:1E:83:BE:76:C9:6D:1B:5F:3C:F7
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • CPS: http://www.digicert.com/CPS
authorityInfoAccess
  • OCSP - URI:http://status.rapidssl.com
  • CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Mar 22 09:16:39.722 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:7F:05:D5:D0:F3:B5:42:F8:DE:77:C5:F1:
  • 93:5E:72:57:EC:9A:59:7C:12:FD:92:18:3F:FC:1C:DD:
  • 17:51:3F:36:02:21:00:A6:6F:B4:0F:02:45:5C:C0:27:
  • 49:72:FE:A3:C3:CD:84:5E:AE:7D:F0:FE:39:16:EC:E6:
  • DE:8D:4A:45:A4:96:44
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 73:D9:9E:89:1B:4C:96:78:A0:20:7D:47:9D:E6:B2:C6:
  • 1C:D0:51:5E:71:19:2A:8C:6B:80:10:7A:C1:77:72:B5
  • Timestamp : Mar 22 09:16:39.767 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:57:60:97:F1:64:3D:0D:5D:52:40:EE:1C:
  • BB:46:8A:B6:BD:46:46:F6:D3:30:AD:8E:BA:DB:F8:4C:
  • 56:3A:13:DE:02:21:00:A8:7E:63:CE:FF:28:3B:63:FB:
  • E7:EB:F6:FF:C0:F0:67:05:23:5A:6A:42:39:51:42:17:
  • 8E:7B:52:78:17:81:56
  • 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 : Mar 22 09:16:39.715 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:C5:11:5F:63:56:2B:B5:C2:4C:A8:04:
  • 52:6A:8E:3E:99:68:AC:1E:43:EF:13:C3:43:78:5B:80:
  • C0:2F:F3:44:DA:02:21:00:E0:EA:31:9B:34:6A:D6:9F:
  • F8:6D:07:31:D4:E6:E5:B9:15:37:BC:56:16:80:F2:3B:
  • 83:86:CC:D0:93:88:08:08