SSL-Tools

SSL check results of mxcore.de

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Discover if the mail servers for mxcore.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, 29 Aug 2020 08:01:50 +0000

The mailservers of mxcore.de 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 @mxcore.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mxcore.de
37.120.165.65
 10
supported
mxcore.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s
unixlab.de
37.120.179.208
Results incomplete
20
supported
unixlab.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=mxcore.de

Certificate chain
Subject
Common Name (CN)
  • mxcore.de
Alternative Names
  • mxcore.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-06-28
Not valid after
2020-09-26
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
62:93:FB:9A:9B:5C:FF:A0:3F:DB:99:3E:33:B5:AD:8E:4A:31:67:0A:63:C9:C8:77:4B:66:00:9D:C0:35:6E:DF
SHA1
ED:44:B5:14:E2:74:85:5B:5F:A7:70:FD:5B:C7:23:2D:0C:0F:64:01
X509v3 extensions
subjectKeyIdentifier
  • A3:27:A9:A9:41:4D:F5:55:33:50:6E:1B:9E:60:29:F5:35:BF:65:D4
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E7:12:F2:B0:37:7E:1A:62:FB:8E:C9:0C:61:84:F1:EA:
  • 7B:37:CB:56:1D:11:26:5B:F3:E0:F3:4B:F2:41:54:6E
  • Timestamp : Jun 28 11:42:24.847 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E9:03:B7:26:4E:EF:0D:65:78:25:78:
  • 30:03:33:F7:D0:F6:C0:CA:07:D5:CB:AC:D5:EA:8D:F2:
  • 06:E6:41:C1:DC:02:21:00:F5:7F:6E:9D:20:67:09:2D:
  • C4:42:6D:22:62:4F:B6:9D:2E:5F:B6:80:99:2F:A1:93:
  • 46:83:A0:50:2F:F3:44:FA
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Jun 28 11:42:24.895 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:19:D4:47:53:85:B8:4C:71:38:18:DC:9E:
  • B5:2E:D6:DD:B6:19:B4:90:BE:12:B9:EE:51:B8:51:71:
  • 17:29:96:AF:02:20:29:BF:E7:D6:5C:8B:06:00:3F:10:
  • E7:D9:25:C6:F8:C6:F5:32:60:82:25:67:56:2D:2F:38:
  • 4D:3A:20:B1:CF:A7
First seen at:

CN=unixlab.de,C=DE

Certificate chain
  • unixlab.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Expired
Subject
Country (C)
  • DE
Common Name (CN)
  • unixlab.de
Alternative Names
  • unixlab.de
  • www.unixlab.de
  • dev.unixlab.de
  • go.unixlab.de
  • python.unixlab.de
  • api.unixlab.de
  • ios.unixlab.de
  • android.unixlab.de
  • beta.unixlab.de
  • mail.unixlab.de
Issuer
Country (C)
  • IL
Organization (O)
  • StartCom Ltd.
Organizational Unit (OU)
  • StartCom Certification Authority
Common Name (CN)
  • StartCom Class 1 DV Server CA
validity period
Not valid before
2016-11-12
Not valid after
2019-11-12
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Client Authentication
  • TLS Web Server Authentication
Fingerprints
SHA256
CB:21:C1:17:A2:46:D5:6B:26:4D:5D:8F:C7:B4:EE:CE:4C:5D:9E:9A:66:22:5F:4D:8C:12:E7:9E:38:72:9A:0E
SHA1
D3:A6:EE:23:7D:5B:2F:86:91:A1:C4:71:0C:63:CD:04:4E:8C:2E:1A
X509v3 extensions
subjectKeyIdentifier
  • F4:A2:B1:41:08:E4:A2:F3:25:CE:7B:EF:8E:68:E3:EB:50:49:77:FF
authorityKeyIdentifier
  • keyid:D7:91:4E:01:C4:B0:BF:F8:C8:67:93:44:9C:E7:33:FA:AD:93:0C:AF
authorityInfoAccess
  • OCSP - URI:http://ocsp.startssl.com
  • CA Issuers - URI:http://aia.startssl.com/certs/sca.server1.crt
crlDistributionPoints
  • Full Name:
  • URI:http://crl.startssl.com/sca-server1.crl
issuerAltName
  • URI:http://www.startssl.com/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.23223.1.2.5
  • CPS: https://www.startssl.com/policy
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 34:BB:6A:D6:C3:DF:9C:03:EE:A8:A4:99:FF:78:91:48:
  • 6C:9D:5E:5C:AC:92:D0:1F:7B:FD:1B:CE:19:DB:48:EF
  • Timestamp : Nov 12 10:10:14.552 2016 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:8B:96:3E:5E:88:1B:C1:43:36:F1:3B:
  • 20:C5:47:4B:C0:E4:7F:49:99:AD:C8:AA:F9:70:6E:77:
  • 46:DA:63:42:5E:02:20:48:3A:73:33:F3:07:2E:79:40:
  • D4:52:CF:E7:B1:07:E3:BA:9D:0D:48:A7:A9:CE:19:2E:
  • 89:79:F2:11:0A:68:DC
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A4:B9:09:90:B4:18:58:14:87:BB:13:A2:CC:67:70:0A:
  • 3C:35:98:04:F9:1B:DF:B8:E3:77:CD:0E:C8:0D:DC:10
  • Timestamp : Nov 12 10:10:16.010 2016 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:5E:D7:82:AD:0F:38:FA:92:56:BA:12:6E:
  • 5F:E9:C9:34:1B:46:A2:0D:64:4D:24:78:36:10:9A:49:
  • 87:1B:9B:3F:02:20:5B:76:D2:5A:91:04:D9:DB:5F:D8:
  • AF:B6:67:8A:0F:0D:91:31:0A:1C:A0:7B:99:AE:B3:A6:
  • 65:58:C7:B3:DA:98
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 68:F6:98:F8:1F:64:82:BE:3A:8C:EE:B9:28:1D:4C:FC:
  • 71:51:5D:67:93:D4:44:D1:0A:67:AC:BB:4F:4F:FB:C4
  • Timestamp : Nov 12 10:10:15.861 2016 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:8C:67:4D:DE:B5:73:B5:53:7F:9F:11:
  • 6C:AC:9B:8F:F9:0F:9E:C2:68:F5:9D:2B:CE:32:F8:7B:
  • 7F:91:E9:4E:12:02:21:00:ED:DD:B6:6F:2A:1F:9C:B9:
  • F6:F5:DA:2C:C6:BA:C0:43:04:4A:9D:1B:9C:DD:A4:24:
  • 0F:9E:57:0D:5D:62:D0:2E
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:4B:BD:B7:75:CE:60:BA:E1:42:69:1F:AB:E1:9E:66:
  • A3:0F:7E:5F:B0:72:D8:83:00:C4:7B:89:7A:A8:FD:CB
  • Timestamp : Nov 12 10:10:16.426 2016 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:01:E9:AD:DC:D2:3D:8C:BB:F5:7D:C9:1F:
  • B5:95:4D:23:D7:0B:60:9B:4F:F6:27:E1:7B:D4:D6:09:
  • AE:16:4E:7C:02:20:14:3B:28:86:2A:3C:6F:86:5E:42:
  • 46:01:54:20:2A:23:AB:A5:68:9B:7C:B0:4B:6F:8E:CA:
  • 30:77:3B:0B:FC:C6